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comparison: browser/components/downloads/content/allDownloadsViewOverlay.js

browser/components/downloads/content/allDownloadsViewOverlay.js

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1 /* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
3 * You can obtain one at http://mozilla.org/MPL/2.0/. */
4
5 /**
6 * THE PLACES VIEW IMPLEMENTED IN THIS FILE HAS A VERY PARTICULAR USE CASE.
7 * IT IS HIGHLY RECOMMENDED NOT TO EXTEND IT FOR ANY OTHER USE CASES OR RELY
8 * ON IT AS AN API.
9 */
10
11 let Cu = Components.utils;
12 let Ci = Components.interfaces;
13 let Cc = Components.classes;
14
15 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
16 Cu.import("resource://gre/modules/Services.jsm");
17 Cu.import("resource://gre/modules/NetUtil.jsm");
18 Cu.import("resource://gre/modules/DownloadUtils.jsm");
19 Cu.import("resource:///modules/DownloadsCommon.jsm");
20 Cu.import("resource://gre/modules/PlacesUtils.jsm");
21 Cu.import("resource://gre/modules/osfile.jsm");
22
23 XPCOMUtils.defineLazyModuleGetter(this, "PrivateBrowsingUtils",
24 "resource://gre/modules/PrivateBrowsingUtils.jsm");
25 XPCOMUtils.defineLazyModuleGetter(this, "RecentWindow",
26 "resource:///modules/RecentWindow.jsm");
27 XPCOMUtils.defineLazyModuleGetter(this, "FileUtils",
28 "resource://gre/modules/FileUtils.jsm");
29
30 const nsIDM = Ci.nsIDownloadManager;
31
32 const DESTINATION_FILE_URI_ANNO = "downloads/destinationFileURI";
33 const DOWNLOAD_META_DATA_ANNO = "downloads/metaData";
34
35 const DOWNLOAD_VIEW_SUPPORTED_COMMANDS =
36 ["cmd_delete", "cmd_copy", "cmd_paste", "cmd_selectAll",
37 "downloadsCmd_pauseResume", "downloadsCmd_cancel",
38 "downloadsCmd_open", "downloadsCmd_show", "downloadsCmd_retry",
39 "downloadsCmd_openReferrer", "downloadsCmd_clearDownloads"];
40
41 const NOT_AVAILABLE = Number.MAX_VALUE;
42
43 /**
44 * A download element shell is responsible for handling the commands and the
45 * displayed data for a single download view element. The download element
46 * could represent either a past download (for which we get data from places) or
47 * a "session" download (using a data-item object. See DownloadsCommon.jsm), or both.
48 *
49 * Once initialized with either a data item or a places node, the created richlistitem
50 * can be accessed through the |element| getter, and can then be inserted/removed from
51 * a richlistbox.
52 *
53 * The shell doesn't take care of inserting the item, or removing it when it's no longer
54 * valid. That's the caller (a DownloadsPlacesView object) responsibility.
55 *
56 * The caller is also responsible for "passing over" notification from both the
57 * download-view and the places-result-observer, in the following manner:
58 * - The DownloadsPlacesView object implements getViewItem of the download-view
59 * pseudo interface. It returns this object (therefore we implement
60 * onStateChangea and onProgressChange here).
61 * - The DownloadsPlacesView object adds itself as a places result observer and
62 * calls this object's placesNodeIconChanged, placesNodeTitleChanged and
63 * placeNodeAnnotationChanged from its callbacks.
64 *
65 * @param [optional] aDataItem
66 * The data item of a the session download. Required if aPlacesNode is not set
67 * @param [optional] aPlacesNode
68 * The places node for a past download. Required if aDataItem is not set.
69 * @param [optional] aAnnotations
70 * Map containing annotations values, to speed up the initial loading.
71 */
72 function DownloadElementShell(aDataItem, aPlacesNode, aAnnotations) {
73 this._element = document.createElement("richlistitem");
74 this._element._shell = this;
75
76 this._element.classList.add("download");
77 this._element.classList.add("download-state");
78
79 if (aAnnotations)
80 this._annotations = aAnnotations;
81 if (aDataItem)
82 this.dataItem = aDataItem;
83 if (aPlacesNode)
84 this.placesNode = aPlacesNode;
85 }
86
87 DownloadElementShell.prototype = {
88 // The richlistitem for the download
89 get element() this._element,
90
91 /**
92 * Manages the "active" state of the shell. By default all the shells
93 * without a dataItem are inactive, thus their UI is not updated. They must
94 * be activated when entering the visible area. Session downloads are
95 * always active since they always have a dataItem.
96 */
97 ensureActive: function DES_ensureActive() {
98 if (!this._active) {
99 this._active = true;
100 this._element.setAttribute("active", true);
101 this._updateUI();
102 }
103 },
104 get active() !!this._active,
105
106 // The data item for the download
107 _dataItem: null,
108 get dataItem() this._dataItem,
109
110 set dataItem(aValue) {
111 if (this._dataItem != aValue) {
112 if (!aValue && !this._placesNode)
113 throw new Error("Should always have either a dataItem or a placesNode");
114
115 this._dataItem = aValue;
116 if (!this.active)
117 this.ensureActive();
118 else
119 this._updateUI();
120 }
121 return aValue;
122 },
123
124 _placesNode: null,
125 get placesNode() this._placesNode,
126 set placesNode(aValue) {
127 if (this._placesNode != aValue) {
128 if (!aValue && !this._dataItem)
129 throw new Error("Should always have either a dataItem or a placesNode");
130
131 // Preserve the annotations map if this is the first loading and we got
132 // cached values.
133 if (this._placesNode || !this._annotations) {
134 this._annotations = new Map();
135 }
136
137 this._placesNode = aValue;
138
139 // We don't need to update the UI if we had a data item, because
140 // the places information isn't used in this case.
141 if (!this._dataItem && this.active)
142 this._updateUI();
143 }
144 return aValue;
145 },
146
147 // The download uri (as a string)
148 get downloadURI() {
149 if (this._dataItem)
150 return this._dataItem.uri;
151 if (this._placesNode)
152 return this._placesNode.uri;
153 throw new Error("Unexpected download element state");
154 },
155
156 get _downloadURIObj() {
157 if (!("__downloadURIObj" in this))
158 this.__downloadURIObj = NetUtil.newURI(this.downloadURI);
159 return this.__downloadURIObj;
160 },
161
162 _getIcon: function DES__getIcon() {
163 let metaData = this.getDownloadMetaData();
164 if ("filePath" in metaData)
165 return "moz-icon://" + metaData.filePath + "?size=32";
166
167 if (this._placesNode) {
168 // Try to extract an extension from the uri.
169 let ext = this._downloadURIObj.QueryInterface(Ci.nsIURL).fileExtension;
170 if (ext)
171 return "moz-icon://." + ext + "?size=32";
172 return this._placesNode.icon || "moz-icon://.unknown?size=32";
173 }
174 if (this._dataItem)
175 throw new Error("Session-download items should always have a target file uri");
176
177 throw new Error("Unexpected download element state");
178 },
179
180 // Helper for getting a places annotation set for the download.
181 _getAnnotation: function DES__getAnnotation(aAnnotation, aDefaultValue) {
182 let value;
183 if (this._annotations.has(aAnnotation))
184 value = this._annotations.get(aAnnotation);
185
186 // If the value is cached, or we know it doesn't exist, avoid a database
187 // lookup.
188 if (value === undefined) {
189 try {
190 value = PlacesUtils.annotations.getPageAnnotation(
191 this._downloadURIObj, aAnnotation);
192 }
193 catch(ex) {
194 value = NOT_AVAILABLE;
195 }
196 }
197
198 if (value === NOT_AVAILABLE) {
199 if (aDefaultValue === undefined) {
200 throw new Error("Could not get required annotation '" + aAnnotation +
201 "' for download with url '" + this.downloadURI + "'");
202 }
203 value = aDefaultValue;
204 }
205
206 this._annotations.set(aAnnotation, value);
207 return value;
208 },
209
210 _fetchTargetFileInfo: function DES__fetchTargetFileInfo(aUpdateMetaDataAndStatusUI = false) {
211 if (this._targetFileInfoFetched)
212 throw new Error("_fetchTargetFileInfo should not be called if the information was already fetched");
213 if (!this.active)
214 throw new Error("Trying to _fetchTargetFileInfo on an inactive download shell");
215
216 let path = this.getDownloadMetaData().filePath;
217
218 // In previous version, the target file annotations were not set,
219 // so we cannot tell where is the file.
220 if (path === undefined) {
221 this._targetFileInfoFetched = true;
222 this._targetFileExists = false;
223 if (aUpdateMetaDataAndStatusUI) {
224 this._metaData = null;
225 this._updateDownloadStatusUI();
226 }
227 // Here we don't need to update the download commands,
228 // as the state is unknown as it was.
229 return;
230 }
231
232 OS.File.stat(path).then(
233 function onSuccess(fileInfo) {
234 this._targetFileInfoFetched = true;
235 this._targetFileExists = true;
236 this._targetFileSize = fileInfo.size;
237 if (aUpdateMetaDataAndStatusUI) {
238 this._metaData = null;
239 this._updateDownloadStatusUI();
240 }
241 if (this._element.selected)
242 goUpdateDownloadCommands();
243 }.bind(this),
244
245 function onFailure(aReason) {
246 if (aReason instanceof OS.File.Error && aReason.becauseNoSuchFile) {
247 this._targetFileInfoFetched = true;
248 this._targetFileExists = false;
249 }
250 else {
251 Cu.reportError("Could not fetch info for target file (reason: " +
252 aReason + ")");
253 }
254
255 if (aUpdateMetaDataAndStatusUI) {
256 this._metaData = null;
257 this._updateDownloadStatusUI();
258 }
259
260 if (this._element.selected)
261 goUpdateDownloadCommands();
262 }.bind(this)
263 );
264 },
265
266 _getAnnotatedMetaData: function DES__getAnnotatedMetaData()
267 JSON.parse(this._getAnnotation(DOWNLOAD_META_DATA_ANNO)),
268
269 _extractFilePathAndNameFromFileURI:
270 function DES__extractFilePathAndNameFromFileURI(aFileURI) {
271 let file = Cc["@mozilla.org/network/protocol;1?name=file"]
272 .getService(Ci.nsIFileProtocolHandler)
273 .getFileFromURLSpec(aFileURI);
274 return [file.path, file.leafName];
275 },
276
277 /**
278 * Retrieve the meta data object for the download. The following fields
279 * may be set.
280 *
281 * - state - any download state defined in nsIDownloadManager. If this field
282 * is not set, the download state is unknown.
283 * - endTime: the end time of the download.
284 * - filePath: the downloaded file path on the file system, when it
285 * was downloaded. The file may not exist. This is set for session
286 * downloads that have a local file set, and for history downloads done
287 * after the landing of bug 591289.
288 * - fileName: the downloaded file name on the file system. Set if filePath
289 * is set.
290 * - displayName: the user-facing label for the download. This is always
291 * set. If available, it's set to the downloaded file name. If not,
292 * the places title for the download uri is used it's set. As a last
293 * resort, we fallback to the download uri.
294 * - fileSize (only set for downloads which completed succesfully):
295 * the downloaded file size. For downloads done after the landing of
296 * bug 826991, this value is "static" - that is, it does not necessarily
297 * mean that the file is in place and has this size.
298 */
299 getDownloadMetaData: function DES_getDownloadMetaData() {
300 if (!this._metaData) {
301 if (this._dataItem) {
302 this._metaData = {
303 state: this._dataItem.state,
304 endTime: this._dataItem.endTime,
305 fileName: this._dataItem.target,
306 displayName: this._dataItem.target
307 };
308 if (this._dataItem.done)
309 this._metaData.fileSize = this._dataItem.maxBytes;
310 if (this._dataItem.localFile)
311 this._metaData.filePath = this._dataItem.localFile.path;
312 }
313 else {
314 try {
315 this._metaData = this._getAnnotatedMetaData();
316 }
317 catch(ex) {
318 this._metaData = { };
319 if (this._targetFileInfoFetched && this._targetFileExists) {
320 this._metaData.state = this._targetFileSize > 0 ?
321 nsIDM.DOWNLOAD_FINISHED : nsIDM.DOWNLOAD_FAILED;
322 this._metaData.fileSize = this._targetFileSize;
323 }
324
325 // This is actually the start-time, but it's the best we can get.
326 this._metaData.endTime = this._placesNode.time / 1000;
327 }
328
329 try {
330 let targetFileURI = this._getAnnotation(DESTINATION_FILE_URI_ANNO);
331 [this._metaData.filePath, this._metaData.fileName] =
332 this._extractFilePathAndNameFromFileURI(targetFileURI);
333 this._metaData.displayName = this._metaData.fileName;
334 }
335 catch(ex) {
336 this._metaData.displayName = this._placesNode.title || this.downloadURI;
337 }
338 }
339 }
340 return this._metaData;
341 },
342
343 // The status text for the download
344 _getStatusText: function DES__getStatusText() {
345 let s = DownloadsCommon.strings;
346 if (this._dataItem && this._dataItem.inProgress) {
347 if (this._dataItem.paused) {
348 let transfer =
349 DownloadUtils.getTransferTotal(this._dataItem.currBytes,
350 this._dataItem.maxBytes);
351
352 // We use the same XUL label to display both the state and the amount
353 // transferred, for example "Paused - 1.1 MB".
354 return s.statusSeparatorBeforeNumber(s.statePaused, transfer);
355 }
356 if (this._dataItem.state == nsIDM.DOWNLOAD_DOWNLOADING) {
357 let [status, newEstimatedSecondsLeft] =
358 DownloadUtils.getDownloadStatus(this.dataItem.currBytes,
359 this.dataItem.maxBytes,
360 this.dataItem.speed,
361 this._lastEstimatedSecondsLeft || Infinity);
362 this._lastEstimatedSecondsLeft = newEstimatedSecondsLeft;
363 return status;
364 }
365 if (this._dataItem.starting) {
366 return s.stateStarting;
367 }
368 if (this._dataItem.state == nsIDM.DOWNLOAD_SCANNING) {
369 return s.stateScanning;
370 }
371
372 throw new Error("_getStatusText called with a bogus download state");
373 }
374
375 // This is a not-in-progress or history download.
376 let stateLabel = "";
377 let state = this.getDownloadMetaData().state;
378 switch (state) {
379 case nsIDM.DOWNLOAD_FAILED:
380 stateLabel = s.stateFailed;
381 break;
382 case nsIDM.DOWNLOAD_CANCELED:
383 stateLabel = s.stateCanceled;
384 break;
385 case nsIDM.DOWNLOAD_BLOCKED_PARENTAL:
386 stateLabel = s.stateBlockedParentalControls;
387 break;
388 case nsIDM.DOWNLOAD_BLOCKED_POLICY:
389 stateLabel = s.stateBlockedPolicy;
390 break;
391 case nsIDM.DOWNLOAD_DIRTY:
392 stateLabel = s.stateDirty;
393 break;
394 case nsIDM.DOWNLOAD_FINISHED:{
395 // For completed downloads, show the file size (e.g. "1.5 MB")
396 let metaData = this.getDownloadMetaData();
397 if ("fileSize" in metaData) {
398 let [size, unit] = DownloadUtils.convertByteUnits(metaData.fileSize);
399 stateLabel = s.sizeWithUnits(size, unit);
400 break;
401 }
402 // Fallback to default unknown state.
403 }
404 default:
405 stateLabel = s.sizeUnknown;
406 break;
407 }
408
409 // TODO (bug 829201): history downloads should get the referrer from Places.
410 let referrer = this._dataItem && this._dataItem.referrer ||
411 this.downloadURI;
412 let [displayHost, fullHost] = DownloadUtils.getURIHost(referrer);
413
414 let date = new Date(this.getDownloadMetaData().endTime);
415 let [displayDate, fullDate] = DownloadUtils.getReadableDates(date);
416
417 // We use the same XUL label to display the state, the host name, and the
418 // end time.
419 let firstPart = s.statusSeparator(stateLabel, displayHost);
420 return s.statusSeparator(firstPart, displayDate);
421 },
422
423 // The progressmeter element for the download
424 get _progressElement() {
425 if (!("__progressElement" in this)) {
426 this.__progressElement =
427 document.getAnonymousElementByAttribute(this._element, "anonid",
428 "progressmeter");
429 }
430 return this.__progressElement;
431 },
432
433 // Updates the download state attribute (and by that hide/unhide the
434 // appropriate buttons and context menu items), the status text label,
435 // and the progress meter.
436 _updateDownloadStatusUI: function DES__updateDownloadStatusUI() {
437 if (!this.active)
438 throw new Error("_updateDownloadStatusUI called for an inactive item.");
439
440 let state = this.getDownloadMetaData().state;
441 if (state !== undefined)
442 this._element.setAttribute("state", state);
443
444 this._element.setAttribute("status", this._getStatusText());
445
446 // For past-downloads, we're done. For session-downloads, we may also need
447 // to update the progress-meter.
448 if (!this._dataItem)
449 return;
450
451 // Copied from updateProgress in downloads.js.
452 if (this._dataItem.starting) {
453 // Before the download starts, the progress meter has its initial value.
454 this._element.setAttribute("progressmode", "normal");
455 this._element.setAttribute("progress", "0");
456 }
457 else if (this._dataItem.state == nsIDM.DOWNLOAD_SCANNING ||
458 this._dataItem.percentComplete == -1) {
459 // We might not know the progress of a running download, and we don't know
460 // the remaining time during the malware scanning phase.
461 this._element.setAttribute("progressmode", "undetermined");
462 }
463 else {
464 // This is a running download of which we know the progress.
465 this._element.setAttribute("progressmode", "normal");
466 this._element.setAttribute("progress", this._dataItem.percentComplete);
467 }
468
469 // Dispatch the ValueChange event for accessibility, if possible.
470 if (this._progressElement) {
471 let event = document.createEvent("Events");
472 event.initEvent("ValueChange", true, true);
473 this._progressElement.dispatchEvent(event);
474 }
475 },
476
477 _updateDisplayNameAndIcon: function DES__updateDisplayNameAndIcon() {
478 let metaData = this.getDownloadMetaData();
479 this._element.setAttribute("displayName", metaData.displayName);
480 this._element.setAttribute("image", this._getIcon());
481 },
482
483 _updateUI: function DES__updateUI() {
484 if (!this.active)
485 throw new Error("Trying to _updateUI on an inactive download shell");
486
487 this._metaData = null;
488 this._targetFileInfoFetched = false;
489
490 this._updateDisplayNameAndIcon();
491
492 // For history downloads done in past releases, the downloads/metaData
493 // annotation is not set, and therefore we cannot tell the download
494 // state without the target file information.
495 if (this._dataItem || this.getDownloadMetaData().state !== undefined)
496 this._updateDownloadStatusUI();
497 else
498 this._fetchTargetFileInfo(true);
499 },
500
501 placesNodeIconChanged: function DES_placesNodeIconChanged() {
502 if (!this._dataItem)
503 this._element.setAttribute("image", this._getIcon());
504 },
505
506 placesNodeTitleChanged: function DES_placesNodeTitleChanged() {
507 // If there's a file path, we use the leaf name for the title.
508 if (!this._dataItem && this.active && !this.getDownloadMetaData().filePath) {
509 this._metaData = null;
510 this._updateDisplayNameAndIcon();
511 }
512 },
513
514 placesNodeAnnotationChanged: function DES_placesNodeAnnotationChanged(aAnnoName) {
515 this._annotations.delete(aAnnoName);
516 if (!this._dataItem && this.active) {
517 if (aAnnoName == DOWNLOAD_META_DATA_ANNO) {
518 let metaData = this.getDownloadMetaData();
519 let annotatedMetaData = this._getAnnotatedMetaData();
520 metaData.endTme = annotatedMetaData.endTime;
521 if ("fileSize" in annotatedMetaData)
522 metaData.fileSize = annotatedMetaData.fileSize;
523 else
524 delete metaData.fileSize;
525
526 if (metaData.state != annotatedMetaData.state) {
527 metaData.state = annotatedMetaData.state;
528 if (this._element.selected)
529 goUpdateDownloadCommands();
530 }
531
532 this._updateDownloadStatusUI();
533 }
534 else if (aAnnoName == DESTINATION_FILE_URI_ANNO) {
535 let metaData = this.getDownloadMetaData();
536 let targetFileURI = this._getAnnotation(DESTINATION_FILE_URI_ANNO);
537 [metaData.filePath, metaData.fileName] =
538 this._extractFilePathAndNameFromFileURI(targetFileURI);
539 metaData.displayName = metaData.fileName;
540 this._updateDisplayNameAndIcon();
541
542 if (this._targetFileInfoFetched) {
543 // This will also update the download commands if necessary.
544 this._targetFileInfoFetched = false;
545 this._fetchTargetFileInfo();
546 }
547 }
548 }
549 },
550
551 /* DownloadView */
552 onStateChange: function DES_onStateChange(aOldState) {
553 let metaData = this.getDownloadMetaData();
554 metaData.state = this.dataItem.state;
555 if (aOldState != nsIDM.DOWNLOAD_FINISHED && aOldState != metaData.state) {
556 // See comment in DVI_onStateChange in downloads.js (the panel-view)
557 this._element.setAttribute("image", this._getIcon() + "&state=normal");
558 metaData.fileSize = this._dataItem.maxBytes;
559 if (this._targetFileInfoFetched) {
560 this._targetFileInfoFetched = false;
561 this._fetchTargetFileInfo();
562 }
563 }
564
565 this._updateDownloadStatusUI();
566 if (this._element.selected)
567 goUpdateDownloadCommands();
568 else
569 goUpdateCommand("downloadsCmd_clearDownloads");
570 },
571
572 /* DownloadView */
573 onProgressChange: function DES_onProgressChange() {
574 this._updateDownloadStatusUI();
575 },
576
577 /* nsIController */
578 isCommandEnabled: function DES_isCommandEnabled(aCommand) {
579 // The only valid command for inactive elements is cmd_delete.
580 if (!this.active && aCommand != "cmd_delete")
581 return false;
582 switch (aCommand) {
583 case "downloadsCmd_open": {
584 // We cannot open a session dowload file unless it's done ("openable").
585 // If it's finished, we need to make sure the file was not removed,
586 // as we do for past downloads.
587 if (this._dataItem && !this._dataItem.openable)
588 return false;
589
590 if (this._targetFileInfoFetched)
591 return this._targetFileExists;
592
593 // If the target file information is not yet fetched,
594 // temporarily assume that the file is in place.
595 return this.getDownloadMetaData().state == nsIDM.DOWNLOAD_FINISHED;
596 }
597 case "downloadsCmd_show": {
598 // TODO: Bug 827010 - Handle part-file asynchronously.
599 if (this._dataItem &&
600 this._dataItem.partFile && this._dataItem.partFile.exists())
601 return true;
602
603 if (this._targetFileInfoFetched)
604 return this._targetFileExists;
605
606 // If the target file information is not yet fetched,
607 // temporarily assume that the file is in place.
608 return this.getDownloadMetaData().state == nsIDM.DOWNLOAD_FINISHED;
609 }
610 case "downloadsCmd_pauseResume":
611 return this._dataItem && this._dataItem.inProgress && this._dataItem.resumable;
612 case "downloadsCmd_retry":
613 // An history download can always be retried.
614 return !this._dataItem || this._dataItem.canRetry;
615 case "downloadsCmd_openReferrer":
616 return this._dataItem && !!this._dataItem.referrer;
617 case "cmd_delete":
618 // The behavior in this case is somewhat unexpected, so we disallow that.
619 if (this._placesNode && this._dataItem && this._dataItem.inProgress)
620 return false;
621 return true;
622 case "downloadsCmd_cancel":
623 return this._dataItem != null;
624 }
625 return false;
626 },
627
628 _retryAsHistoryDownload: function DES__retryAsHistoryDownload() {
629 // In future we may try to download into the same original target uri, when
630 // we have it. Though that requires verifying the path is still valid and
631 // may surprise the user if he wants to be requested every time.
632 let browserWin = RecentWindow.getMostRecentBrowserWindow();
633 let initiatingDoc = browserWin ? browserWin.document : document;
634 DownloadURL(this.downloadURI, this.getDownloadMetaData().fileName,
635 initiatingDoc);
636 },
637
638 /* nsIController */
639 doCommand: function DES_doCommand(aCommand) {
640 switch (aCommand) {
641 case "downloadsCmd_open": {
642 let file = this._dataItem ?
643 this.dataItem.localFile :
644 new FileUtils.File(this.getDownloadMetaData().filePath);
645
646 DownloadsCommon.openDownloadedFile(file, null, window);
647 break;
648 }
649 case "downloadsCmd_show": {
650 if (this._dataItem) {
651 this._dataItem.showLocalFile();
652 }
653 else {
654 let file = new FileUtils.File(this.getDownloadMetaData().filePath);
655 DownloadsCommon.showDownloadedFile(file);
656 }
657 break;
658 }
659 case "downloadsCmd_openReferrer": {
660 openURL(this._dataItem.referrer);
661 break;
662 }
663 case "downloadsCmd_cancel": {
664 this._dataItem.cancel();
665 break;
666 }
667 case "cmd_delete": {
668 if (this._dataItem)
669 this._dataItem.remove();
670 if (this._placesNode)
671 PlacesUtils.bhistory.removePage(this._downloadURIObj);
672 break;
673 }
674 case "downloadsCmd_retry": {
675 if (this._dataItem)
676 this._dataItem.retry();
677 else
678 this._retryAsHistoryDownload();
679 break;
680 }
681 case "downloadsCmd_pauseResume": {
682 this._dataItem.togglePauseResume();
683 break;
684 }
685 }
686 },
687
688 // Returns whether or not the download handled by this shell should
689 // show up in the search results for the given term. Both the display
690 // name for the download and the url are searched.
691 matchesSearchTerm: function DES_matchesSearchTerm(aTerm) {
692 if (!aTerm)
693 return true;
694 aTerm = aTerm.toLowerCase();
695 return this.getDownloadMetaData().displayName.toLowerCase().contains(aTerm) ||
696 this.downloadURI.toLowerCase().contains(aTerm);
697 },
698
699 // Handles return kepress on the element (the keypress listener is
700 // set in the DownloadsPlacesView object).
701 doDefaultCommand: function DES_doDefaultCommand() {
702 function getDefaultCommandForState(aState) {
703 switch (aState) {
704 case nsIDM.DOWNLOAD_FINISHED:
705 return "downloadsCmd_open";
706 case nsIDM.DOWNLOAD_PAUSED:
707 return "downloadsCmd_pauseResume";
708 case nsIDM.DOWNLOAD_NOTSTARTED:
709 case nsIDM.DOWNLOAD_QUEUED:
710 return "downloadsCmd_cancel";
711 case nsIDM.DOWNLOAD_FAILED:
712 case nsIDM.DOWNLOAD_CANCELED:
713 return "downloadsCmd_retry";
714 case nsIDM.DOWNLOAD_SCANNING:
715 return "downloadsCmd_show";
716 case nsIDM.DOWNLOAD_BLOCKED_PARENTAL:
717 case nsIDM.DOWNLOAD_DIRTY:
718 case nsIDM.DOWNLOAD_BLOCKED_POLICY:
719 return "downloadsCmd_openReferrer";
720 }
721 return "";
722 }
723 let command = getDefaultCommandForState(this.getDownloadMetaData().state);
724 if (command && this.isCommandEnabled(command))
725 this.doCommand(command);
726 },
727
728 /**
729 * At the first time an item is selected, we don't yet have
730 * the target file information. Thus the call to goUpdateDownloadCommands
731 * in DPV_onSelect would result in best-guess enabled/disabled result.
732 * That way we let the user perform command immediately. However, once
733 * we have the target file information, we can update the commands
734 * appropriately (_fetchTargetFileInfo() calls goUpdateDownloadCommands).
735 */
736 onSelect: function DES_onSelect() {
737 if (!this.active)
738 return;
739 if (!this._targetFileInfoFetched)
740 this._fetchTargetFileInfo();
741 }
742 };
743
744 /**
745 * A Downloads Places View is a places view designed to show a places query
746 * for history donwloads alongside the current "session"-downloads.
747 *
748 * As we don't use the places controller, some methods implemented by other
749 * places views are not implemented by this view.
750 *
751 * A richlistitem in this view can represent either a past download or a session
752 * download, or both. Session downloads are shown first in the view, and as long
753 * as they exist they "collapses" their history "counterpart" (So we don't show two
754 * items for every download).
755 */
756 function DownloadsPlacesView(aRichListBox, aActive = true) {
757 this._richlistbox = aRichListBox;
758 this._richlistbox._placesView = this;
759 window.controllers.insertControllerAt(0, this);
760
761 // Map download URLs to download element shells regardless of their type
762 this._downloadElementsShellsForURI = new Map();
763
764 // Map download data items to their element shells.
765 this._viewItemsForDataItems = new WeakMap();
766
767 // Points to the last session download element. We keep track of this
768 // in order to keep all session downloads above past downloads.
769 this._lastSessionDownloadElement = null;
770
771 this._searchTerm = "";
772
773 this._active = aActive;
774
775 // Register as a downloads view. The places data will be initialized by
776 // the places setter.
777 this._initiallySelectedElement = null;
778 this._downloadsData = DownloadsCommon.getData(window.opener || window);
779 this._downloadsData.addView(this);
780
781 // Get the Download button out of the attention state since we're about to
782 // view all downloads.
783 DownloadsCommon.getIndicatorData(window).attention = false;
784
785 // Make sure to unregister the view if the window is closed.
786 window.addEventListener("unload", function() {
787 window.controllers.removeController(this);
788 this._downloadsData.removeView(this);
789 this.result = null;
790 }.bind(this), true);
791 // Resizing the window may change items visibility.
792 window.addEventListener("resize", function() {
793 this._ensureVisibleElementsAreActive();
794 }.bind(this), true);
795 }
796
797 DownloadsPlacesView.prototype = {
798 get associatedElement() this._richlistbox,
799
800 get active() this._active,
801 set active(val) {
802 this._active = val;
803 if (this._active)
804 this._ensureVisibleElementsAreActive();
805 return this._active;
806 },
807
808 _forEachDownloadElementShellForURI:
809 function DPV__forEachDownloadElementShellForURI(aURI, aCallback) {
810 if (this._downloadElementsShellsForURI.has(aURI)) {
811 let downloadElementShells = this._downloadElementsShellsForURI.get(aURI);
812 for (let des of downloadElementShells) {
813 aCallback(des);
814 }
815 }
816 },
817
818 _getAnnotationsFor: function DPV_getAnnotationsFor(aURI) {
819 if (!this._cachedAnnotations) {
820 this._cachedAnnotations = new Map();
821 for (let name of [ DESTINATION_FILE_URI_ANNO,
822 DOWNLOAD_META_DATA_ANNO ]) {
823 let results = PlacesUtils.annotations.getAnnotationsWithName(name);
824 for (let result of results) {
825 let url = result.uri.spec;
826 if (!this._cachedAnnotations.has(url))
827 this._cachedAnnotations.set(url, new Map());
828 let m = this._cachedAnnotations.get(url);
829 m.set(result.annotationName, result.annotationValue);
830 }
831 }
832 }
833
834 let annotations = this._cachedAnnotations.get(aURI);
835 if (!annotations) {
836 // There are no annotations for this entry, that means it is quite old.
837 // Make up a fake annotations entry with default values.
838 annotations = new Map();
839 annotations.set(DESTINATION_FILE_URI_ANNO, NOT_AVAILABLE);
840 }
841 // The meta-data annotation has been added recently, so it's likely missing.
842 if (!annotations.has(DOWNLOAD_META_DATA_ANNO)) {
843 annotations.set(DOWNLOAD_META_DATA_ANNO, NOT_AVAILABLE);
844 }
845 return annotations;
846 },
847
848 /**
849 * Given a data item for a session download, or a places node for a past
850 * download, updates the view as necessary.
851 * 1. If the given data is a places node, we check whether there are any
852 * elements for the same download url. If there are, then we just reset
853 * their places node. Otherwise we add a new download element.
854 * 2. If the given data is a data item, we first check if there's a history
855 * download in the list that is not associated with a data item. If we
856 * found one, we use it for the data item as well and reposition it
857 * alongside the other session downloads. If we don't, then we go ahead
858 * and create a new element for the download.
859 *
860 * @param aDataItem
861 * The data item of a session download. Set to null for history
862 * downloads data.
863 * @param [optional] aPlacesNode
864 * The places node for a history download. Required if there's no data
865 * item.
866 * @param [optional] aNewest
867 * @see onDataItemAdded. Ignored for history downlods.
868 * @param [optional] aDocumentFragment
869 * To speed up the appending of multiple elements to the end of the
870 * list which are coming in a single batch (i.e. invalidateContainer),
871 * a document fragment may be passed to which the new elements would
872 * be appended. It's the caller's job to ensure the fragment is merged
873 * to the richlistbox at the end.
874 */
875 _addDownloadData:
876 function DPV_addDownloadData(aDataItem, aPlacesNode, aNewest = false,
877 aDocumentFragment = null) {
878 let downloadURI = aPlacesNode ? aPlacesNode.uri : aDataItem.uri;
879 let shellsForURI = this._downloadElementsShellsForURI.get(downloadURI);
880 if (!shellsForURI) {
881 shellsForURI = new Set();
882 this._downloadElementsShellsForURI.set(downloadURI, shellsForURI);
883 }
884
885 let newOrUpdatedShell = null;
886
887 // Trivial: if there are no shells for this download URI, we always
888 // need to create one.
889 let shouldCreateShell = shellsForURI.size == 0;
890
891 // However, if we do have shells for this download uri, there are
892 // few options:
893 // 1) There's only one shell and it's for a history download (it has
894 // no data item). In this case, we update this shell and move it
895 // if necessary
896 // 2) There are multiple shells, indicicating multiple downloads for
897 // the same download uri are running. In this case we create
898 // anoter shell for the download (so we have one shell for each data
899 // item).
900 //
901 // Note: If a cancelled session download is already in the list, and the
902 // download is retired, onDataItemAdded is called again for the same
903 // data item. Thus, we also check that we make sure we don't have a view item
904 // already.
905 if (!shouldCreateShell &&
906 aDataItem && this.getViewItem(aDataItem) == null) {
907 // If there's a past-download-only shell for this download-uri with no
908 // associated data item, use it for the new data item. Otherwise, go ahead
909 // and create another shell.
910 shouldCreateShell = true;
911 for (let shell of shellsForURI) {
912 if (!shell.dataItem) {
913 shouldCreateShell = false;
914 shell.dataItem = aDataItem;
915 newOrUpdatedShell = shell;
916 this._viewItemsForDataItems.set(aDataItem, shell);
917 break;
918 }
919 }
920 }
921
922 if (shouldCreateShell) {
923 // Bug 836271: The annotations for a url should be cached only when the
924 // places node is available, i.e. when we know we we'd be notified for
925 // annoation changes.
926 // Otherwise we may cache NOT_AVILABLE values first for a given session
927 // download, and later use these NOT_AVILABLE values when a history
928 // download for the same URL is added.
929 let cachedAnnotations = aPlacesNode ? this._getAnnotationsFor(downloadURI) : null;
930 let shell = new DownloadElementShell(aDataItem, aPlacesNode, cachedAnnotations);
931 newOrUpdatedShell = shell;
932 shellsForURI.add(shell);
933 if (aDataItem)
934 this._viewItemsForDataItems.set(aDataItem, shell);
935 }
936 else if (aPlacesNode) {
937 for (let shell of shellsForURI) {
938 if (shell.placesNode != aPlacesNode)
939 shell.placesNode = aPlacesNode;
940 }
941 }
942
943 if (newOrUpdatedShell) {
944 if (aNewest) {
945 this._richlistbox.insertBefore(newOrUpdatedShell.element,
946 this._richlistbox.firstChild);
947 if (!this._lastSessionDownloadElement) {
948 this._lastSessionDownloadElement = newOrUpdatedShell.element;
949 }
950 // Some operations like retrying an history download move an element to
951 // the top of the richlistbox, along with other session downloads.
952 // More generally, if a new download is added, should be made visible.
953 this._richlistbox.ensureElementIsVisible(newOrUpdatedShell.element);
954 }
955 else if (aDataItem) {
956 let before = this._lastSessionDownloadElement ?
957 this._lastSessionDownloadElement.nextSibling : this._richlistbox.firstChild;
958 this._richlistbox.insertBefore(newOrUpdatedShell.element, before);
959 this._lastSessionDownloadElement = newOrUpdatedShell.element;
960 }
961 else {
962 let appendTo = aDocumentFragment || this._richlistbox;
963 appendTo.appendChild(newOrUpdatedShell.element);
964 }
965
966 if (this.searchTerm) {
967 newOrUpdatedShell.element.hidden =
968 !newOrUpdatedShell.element._shell.matchesSearchTerm(this.searchTerm);
969 }
970 }
971
972 // If aDocumentFragment is defined this is a batch change, so it's up to
973 // the caller to append the fragment and activate the visible shells.
974 if (!aDocumentFragment) {
975 this._ensureVisibleElementsAreActive();
976 goUpdateCommand("downloadsCmd_clearDownloads");
977 }
978 },
979
980 _removeElement: function DPV__removeElement(aElement) {
981 // If the element was selected exclusively, select its next
982 // sibling first, if not, try for previous sibling, if any.
983 if ((aElement.nextSibling || aElement.previousSibling) &&
984 this._richlistbox.selectedItems &&
985 this._richlistbox.selectedItems.length == 1 &&
986 this._richlistbox.selectedItems[0] == aElement) {
987 this._richlistbox.selectItem(aElement.nextSibling ||
988 aElement.previousSibling);
989 }
990
991 if (this._lastSessionDownloadElement == aElement)
992 this._lastSessionDownloadElement = aElement.previousSibling;
993
994 this._richlistbox.removeItemFromSelection(aElement);
995 this._richlistbox.removeChild(aElement);
996 this._ensureVisibleElementsAreActive();
997 goUpdateCommand("downloadsCmd_clearDownloads");
998 },
999
1000 _removeHistoryDownloadFromView:
1001 function DPV__removeHistoryDownloadFromView(aPlacesNode) {
1002 let downloadURI = aPlacesNode.uri;
1003 let shellsForURI = this._downloadElementsShellsForURI.get(downloadURI);
1004 if (shellsForURI) {
1005 for (let shell of shellsForURI) {
1006 if (shell.dataItem) {
1007 shell.placesNode = null;
1008 }
1009 else {
1010 this._removeElement(shell.element);
1011 shellsForURI.delete(shell);
1012 if (shellsForURI.size == 0)
1013 this._downloadElementsShellsForURI.delete(downloadURI);
1014 }
1015 }
1016 }
1017 },
1018
1019 _removeSessionDownloadFromView:
1020 function DPV__removeSessionDownloadFromView(aDataItem) {
1021 let shells = this._downloadElementsShellsForURI.get(aDataItem.uri);
1022 if (shells.size == 0)
1023 throw new Error("Should have had at leaat one shell for this uri");
1024
1025 let shell = this.getViewItem(aDataItem);
1026 if (!shells.has(shell))
1027 throw new Error("Missing download element shell in shells list for url");
1028
1029 // If there's more than one item for this download uri, we can let the
1030 // view item for this this particular data item go away.
1031 // If there's only one item for this download uri, we should only
1032 // keep it if it is associated with a history download.
1033 if (shells.size > 1 || !shell.placesNode) {
1034 this._removeElement(shell.element);
1035 shells.delete(shell);
1036 if (shells.size == 0)
1037 this._downloadElementsShellsForURI.delete(aDataItem.uri);
1038 }
1039 else {
1040 shell.dataItem = null;
1041 // Move it below the session-download items;
1042 if (this._lastSessionDownloadElement == shell.element) {
1043 this._lastSessionDownloadElement = shell.element.previousSibling;
1044 }
1045 else {
1046 let before = this._lastSessionDownloadElement ?
1047 this._lastSessionDownloadElement.nextSibling : this._richlistbox.firstChild;
1048 this._richlistbox.insertBefore(shell.element, before);
1049 }
1050 }
1051 },
1052
1053 _ensureVisibleElementsAreActive:
1054 function DPV__ensureVisibleElementsAreActive() {
1055 if (!this.active || this._ensureVisibleTimer || !this._richlistbox.firstChild)
1056 return;
1057
1058 this._ensureVisibleTimer = setTimeout(function() {
1059 delete this._ensureVisibleTimer;
1060 if (!this._richlistbox.firstChild)
1061 return;
1062
1063 let rlbRect = this._richlistbox.getBoundingClientRect();
1064 let winUtils = window.QueryInterface(Ci.nsIInterfaceRequestor)
1065 .getInterface(Ci.nsIDOMWindowUtils);
1066 let nodes = winUtils.nodesFromRect(rlbRect.left, rlbRect.top,
1067 0, rlbRect.width, rlbRect.height, 0,
1068 true, false);
1069 // nodesFromRect returns nodes in z-index order, and for the same z-index
1070 // sorts them in inverted DOM order, thus starting from the one that would
1071 // be on top.
1072 let firstVisibleNode, lastVisibleNode;
1073 for (let node of nodes) {
1074 if (node.localName === "richlistitem" && node._shell) {
1075 node._shell.ensureActive();
1076 // The first visible node is the last match.
1077 firstVisibleNode = node;
1078 // While the last visible node is the first match.
1079 if (!lastVisibleNode)
1080 lastVisibleNode = node;
1081 }
1082 }
1083
1084 // Also activate the first invisible nodes in both boundaries (that is,
1085 // above and below the visible area) to ensure proper keyboard navigation
1086 // in both directions.
1087 let nodeBelowVisibleArea = lastVisibleNode && lastVisibleNode.nextSibling;
1088 if (nodeBelowVisibleArea && nodeBelowVisibleArea._shell)
1089 nodeBelowVisibleArea._shell.ensureActive();
1090
1091 let nodeABoveVisibleArea =
1092 firstVisibleNode && firstVisibleNode.previousSibling;
1093 if (nodeABoveVisibleArea && nodeABoveVisibleArea._shell)
1094 nodeABoveVisibleArea._shell.ensureActive();
1095 }.bind(this), 10);
1096 },
1097
1098 _place: "",
1099 get place() this._place,
1100 set place(val) {
1101 // Don't reload everything if we don't have to.
1102 if (this._place == val) {
1103 // XXXmano: places.js relies on this behavior (see Bug 822203).
1104 this.searchTerm = "";
1105 return val;
1106 }
1107
1108 this._place = val;
1109
1110 let history = PlacesUtils.history;
1111 let queries = { }, options = { };
1112 history.queryStringToQueries(val, queries, { }, options);
1113 if (!queries.value.length)
1114 queries.value = [history.getNewQuery()];
1115
1116 let result = history.executeQueries(queries.value, queries.value.length,
1117 options.value);
1118 result.addObserver(this, false);
1119 return val;
1120 },
1121
1122 _result: null,
1123 get result() this._result,
1124 set result(val) {
1125 if (this._result == val)
1126 return val;
1127
1128 if (this._result) {
1129 this._result.removeObserver(this);
1130 this._resultNode.containerOpen = false;
1131 }
1132
1133 if (val) {
1134 this._result = val;
1135 this._resultNode = val.root;
1136 this._resultNode.containerOpen = true;
1137 this._ensureInitialSelection();
1138 }
1139 else {
1140 delete this._resultNode;
1141 delete this._result;
1142 }
1143
1144 return val;
1145 },
1146
1147 get selectedNodes() {
1148 let placesNodes = [];
1149 let selectedElements = this._richlistbox.selectedItems;
1150 for (let elt of selectedElements) {
1151 if (elt._shell.placesNode)
1152 placesNodes.push(elt._shell.placesNode);
1153 }
1154 return placesNodes;
1155 },
1156
1157 get selectedNode() {
1158 let selectedNodes = this.selectedNodes;
1159 return selectedNodes.length == 1 ? selectedNodes[0] : null;
1160 },
1161
1162 get hasSelection() this.selectedNodes.length > 0,
1163
1164 containerStateChanged:
1165 function DPV_containerStateChanged(aNode, aOldState, aNewState) {
1166 this.invalidateContainer(aNode)
1167 },
1168
1169 invalidateContainer:
1170 function DPV_invalidateContainer(aContainer) {
1171 if (aContainer != this._resultNode)
1172 throw new Error("Unexpected container node");
1173 if (!aContainer.containerOpen)
1174 throw new Error("Root container for the downloads query cannot be closed");
1175
1176 let suppressOnSelect = this._richlistbox.suppressOnSelect;
1177 this._richlistbox.suppressOnSelect = true;
1178 try {
1179 // Remove the invalidated history downloads from the list and unset the
1180 // places node for data downloads.
1181 // Loop backwards since _removeHistoryDownloadFromView may removeChild().
1182 for (let i = this._richlistbox.childNodes.length - 1; i >= 0; --i) {
1183 let element = this._richlistbox.childNodes[i];
1184 if (element._shell.placesNode)
1185 this._removeHistoryDownloadFromView(element._shell.placesNode);
1186 }
1187 }
1188 finally {
1189 this._richlistbox.suppressOnSelect = suppressOnSelect;
1190 }
1191
1192 if (aContainer.childCount > 0) {
1193 let elementsToAppendFragment = document.createDocumentFragment();
1194 for (let i = 0; i < aContainer.childCount; i++) {
1195 try {
1196 this._addDownloadData(null, aContainer.getChild(i), false,
1197 elementsToAppendFragment);
1198 }
1199 catch(ex) {
1200 Cu.reportError(ex);
1201 }
1202 }
1203
1204 // _addDownloadData may not add new elements if there were already
1205 // data items in place.
1206 if (elementsToAppendFragment.firstChild) {
1207 this._appendDownloadsFragment(elementsToAppendFragment);
1208 this._ensureVisibleElementsAreActive();
1209 }
1210 }
1211
1212 goUpdateDownloadCommands();
1213 },
1214
1215 _appendDownloadsFragment: function DPV__appendDownloadsFragment(aDOMFragment) {
1216 // Workaround multiple reflows hang by removing the richlistbox
1217 // and adding it back when we're done.
1218
1219 // Hack for bug 836283: reset xbl fields to their old values after the
1220 // binding is reattached to avoid breaking the selection state
1221 let xblFields = new Map();
1222 for (let [key, value] in Iterator(this._richlistbox)) {
1223 xblFields.set(key, value);
1224 }
1225
1226 let parentNode = this._richlistbox.parentNode;
1227 let nextSibling = this._richlistbox.nextSibling;
1228 parentNode.removeChild(this._richlistbox);
1229 this._richlistbox.appendChild(aDOMFragment);
1230 parentNode.insertBefore(this._richlistbox, nextSibling);
1231
1232 for (let [key, value] of xblFields) {
1233 this._richlistbox[key] = value;
1234 }
1235 },
1236
1237 nodeInserted: function DPV_nodeInserted(aParent, aPlacesNode) {
1238 this._addDownloadData(null, aPlacesNode);
1239 },
1240
1241 nodeRemoved: function DPV_nodeRemoved(aParent, aPlacesNode, aOldIndex) {
1242 this._removeHistoryDownloadFromView(aPlacesNode);
1243 },
1244
1245 nodeIconChanged: function DPV_nodeIconChanged(aNode) {
1246 this._forEachDownloadElementShellForURI(aNode.uri, function(aDownloadElementShell) {
1247 aDownloadElementShell.placesNodeIconChanged();
1248 });
1249 },
1250
1251 nodeAnnotationChanged: function DPV_nodeAnnotationChanged(aNode, aAnnoName) {
1252 this._forEachDownloadElementShellForURI(aNode.uri, function(aDownloadElementShell) {
1253 aDownloadElementShell.placesNodeAnnotationChanged(aAnnoName);
1254 });
1255 },
1256
1257 nodeTitleChanged: function DPV_nodeTitleChanged(aNode, aNewTitle) {
1258 this._forEachDownloadElementShellForURI(aNode.uri, function(aDownloadElementShell) {
1259 aDownloadElementShell.placesNodeTitleChanged();
1260 });
1261 },
1262
1263 nodeKeywordChanged: function() {},
1264 nodeDateAddedChanged: function() {},
1265 nodeLastModifiedChanged: function() {},
1266 nodeHistoryDetailsChanged: function() {},
1267 nodeTagsChanged: function() {},
1268 sortingChanged: function() {},
1269 nodeMoved: function() {},
1270 nodeURIChanged: function() {},
1271 batching: function() {},
1272
1273 get controller() this._richlistbox.controller,
1274
1275 get searchTerm() this._searchTerm,
1276 set searchTerm(aValue) {
1277 if (this._searchTerm != aValue) {
1278 for (let element of this._richlistbox.childNodes) {
1279 element.hidden = !element._shell.matchesSearchTerm(aValue);
1280 }
1281 this._ensureVisibleElementsAreActive();
1282 }
1283 return this._searchTerm = aValue;
1284 },
1285
1286 /**
1287 * When the view loads, we want to select the first item.
1288 * However, because session downloads, for which the data is loaded
1289 * asynchronously, always come first in the list, and because the list
1290 * may (or may not) already contain history downloads at that point, it
1291 * turns out that by the time we can select the first item, the user may
1292 * have already started using the view.
1293 * To make things even more complicated, in other cases, the places data
1294 * may be loaded after the session downloads data. Thus we cannot rely on
1295 * the order in which the data comes in.
1296 * We work around this by attempting to select the first element twice,
1297 * once after the places data is loaded and once when the session downloads
1298 * data is done loading. However, if the selection has changed in-between,
1299 * we assume the user has already started using the view and give up.
1300 */
1301 _ensureInitialSelection: function DPV__ensureInitialSelection() {
1302 // Either they're both null, or the selection has not changed in between.
1303 if (this._richlistbox.selectedItem == this._initiallySelectedElement) {
1304 let firstDownloadElement = this._richlistbox.firstChild;
1305 if (firstDownloadElement != this._initiallySelectedElement) {
1306 // We may be called before _ensureVisibleElementsAreActive,
1307 // or before the download binding is attached. Therefore, ensure the
1308 // first item is activated, and pass the item to the richlistbox
1309 // setters only at a point we know for sure the binding is attached.
1310 firstDownloadElement._shell.ensureActive();
1311 Services.tm.mainThread.dispatch(function() {
1312 this._richlistbox.selectedItem = firstDownloadElement;
1313 this._richlistbox.currentItem = firstDownloadElement;
1314 this._initiallySelectedElement = firstDownloadElement;
1315 }.bind(this), Ci.nsIThread.DISPATCH_NORMAL);
1316 }
1317 }
1318 },
1319
1320 onDataLoadStarting: function() { },
1321 onDataLoadCompleted: function DPV_onDataLoadCompleted() {
1322 this._ensureInitialSelection();
1323 },
1324
1325 onDataItemAdded: function DPV_onDataItemAdded(aDataItem, aNewest) {
1326 this._addDownloadData(aDataItem, null, aNewest);
1327 },
1328
1329 onDataItemRemoved: function DPV_onDataItemRemoved(aDataItem) {
1330 this._removeSessionDownloadFromView(aDataItem);
1331 },
1332
1333 getViewItem: function(aDataItem)
1334 this._viewItemsForDataItems.get(aDataItem, null),
1335
1336 supportsCommand: function DPV_supportsCommand(aCommand) {
1337 if (DOWNLOAD_VIEW_SUPPORTED_COMMANDS.indexOf(aCommand) != -1) {
1338 // The clear-downloads command may be performed by the toolbar-button,
1339 // which can be focused on OS X. Thus enable this command even if the
1340 // richlistbox is not focused.
1341 // For other commands, be prudent and disable them unless the richlistview
1342 // is focused. It's important to make the decision here rather than in
1343 // isCommandEnabled. Otherwise our controller may "steal" commands from
1344 // other controls in the window (see goUpdateCommand &
1345 // getControllerForCommand).
1346 if (document.activeElement == this._richlistbox ||
1347 aCommand == "downloadsCmd_clearDownloads") {
1348 return true;
1349 }
1350 }
1351 return false;
1352 },
1353
1354 isCommandEnabled: function DPV_isCommandEnabled(aCommand) {
1355 switch (aCommand) {
1356 case "cmd_copy":
1357 return this._richlistbox.selectedItems.length > 0;
1358 case "cmd_selectAll":
1359 return true;
1360 case "cmd_paste":
1361 return this._canDownloadClipboardURL();
1362 case "downloadsCmd_clearDownloads":
1363 return this._canClearDownloads();
1364 default:
1365 return Array.every(this._richlistbox.selectedItems, function(element) {
1366 return element._shell.isCommandEnabled(aCommand);
1367 });
1368 }
1369 },
1370
1371 _canClearDownloads: function DPV__canClearDownloads() {
1372 // Downloads can be cleared if there's at least one removeable download in
1373 // the list (either a history download or a completed session download).
1374 // Because history downloads are always removable and are listed after the
1375 // session downloads, check from bottom to top.
1376 for (let elt = this._richlistbox.lastChild; elt; elt = elt.previousSibling) {
1377 if (elt._shell.placesNode || !elt._shell.dataItem.inProgress)
1378 return true;
1379 }
1380 return false;
1381 },
1382
1383 _copySelectedDownloadsToClipboard:
1384 function DPV__copySelectedDownloadsToClipboard() {
1385 let selectedElements = this._richlistbox.selectedItems;
1386 let urls = [e._shell.downloadURI for each (e in selectedElements)];
1387
1388 Cc["@mozilla.org/widget/clipboardhelper;1"].
1389 getService(Ci.nsIClipboardHelper).copyString(urls.join("\n"), document);
1390 },
1391
1392 _getURLFromClipboardData: function DPV__getURLFromClipboardData() {
1393 let trans = Cc["@mozilla.org/widget/transferable;1"].
1394 createInstance(Ci.nsITransferable);
1395 trans.init(null);
1396
1397 let flavors = ["text/x-moz-url", "text/unicode"];
1398 flavors.forEach(trans.addDataFlavor);
1399
1400 Services.clipboard.getData(trans, Services.clipboard.kGlobalClipboard);
1401
1402 // Getting the data or creating the nsIURI might fail.
1403 try {
1404 let data = {};
1405 trans.getAnyTransferData({}, data, {});
1406 let [url, name] = data.value.QueryInterface(Ci.nsISupportsString)
1407 .data.split("\n");
1408 if (url)
1409 return [NetUtil.newURI(url, null, null).spec, name];
1410 }
1411 catch(ex) { }
1412
1413 return ["", ""];
1414 },
1415
1416 _canDownloadClipboardURL: function DPV__canDownloadClipboardURL() {
1417 let [url, name] = this._getURLFromClipboardData();
1418 return url != "";
1419 },
1420
1421 _downloadURLFromClipboard: function DPV__downloadURLFromClipboard() {
1422 let [url, name] = this._getURLFromClipboardData();
1423 let browserWin = RecentWindow.getMostRecentBrowserWindow();
1424 let initiatingDoc = browserWin ? browserWin.document : document;
1425 DownloadURL(url, name, initiatingDoc);
1426 },
1427
1428 doCommand: function DPV_doCommand(aCommand) {
1429 switch (aCommand) {
1430 case "cmd_copy":
1431 this._copySelectedDownloadsToClipboard();
1432 break;
1433 case "cmd_selectAll":
1434 this._richlistbox.selectAll();
1435 break;
1436 case "cmd_paste":
1437 this._downloadURLFromClipboard();
1438 break;
1439 case "downloadsCmd_clearDownloads":
1440 this._downloadsData.removeFinished();
1441 if (this.result) {
1442 Cc["@mozilla.org/browser/download-history;1"]
1443 .getService(Ci.nsIDownloadHistory)
1444 .removeAllDownloads();
1445 }
1446 // There may be no selection or focus change as a result
1447 // of these change, and we want the command updated immediately.
1448 goUpdateCommand("downloadsCmd_clearDownloads");
1449 break;
1450 default: {
1451 // Slicing the array to get a freezed list of selected items. Otherwise,
1452 // the selectedItems array is live and doCommand may alter the selection
1453 // while we are trying to do one particular action, like removing items
1454 // from history.
1455 let selectedElements = this._richlistbox.selectedItems.slice();
1456 for (let element of selectedElements) {
1457 element._shell.doCommand(aCommand);
1458 }
1459 }
1460 }
1461 },
1462
1463 onEvent: function() { },
1464
1465 onContextMenu: function DPV_onContextMenu(aEvent)
1466 {
1467 let element = this._richlistbox.selectedItem;
1468 if (!element || !element._shell)
1469 return false;
1470
1471 // Set the state attribute so that only the appropriate items are displayed.
1472 let contextMenu = document.getElementById("downloadsContextMenu");
1473 let state = element._shell.getDownloadMetaData().state;
1474 if (state !== undefined)
1475 contextMenu.setAttribute("state", state);
1476 else
1477 contextMenu.removeAttribute("state");
1478
1479 if (state == nsIDM.DOWNLOAD_DOWNLOADING) {
1480 // The resumable property of a download may change at any time, so
1481 // ensure we update the related command now.
1482 goUpdateCommand("downloadsCmd_pauseResume");
1483 }
1484 return true;
1485 },
1486
1487 onKeyPress: function DPV_onKeyPress(aEvent) {
1488 let selectedElements = this._richlistbox.selectedItems;
1489 if (aEvent.keyCode == KeyEvent.DOM_VK_RETURN) {
1490 // In the content tree, opening bookmarks by pressing return is only
1491 // supported when a single item is selected. To be consistent, do the
1492 // same here.
1493 if (selectedElements.length == 1) {
1494 let element = selectedElements[0];
1495 if (element._shell)
1496 element._shell.doDefaultCommand();
1497 }
1498 }
1499 else if (aEvent.charCode == " ".charCodeAt(0)) {
1500 // Pausue/Resume every selected download
1501 for (let element of selectedElements) {
1502 if (element._shell.isCommandEnabled("downloadsCmd_pauseResume"))
1503 element._shell.doCommand("downloadsCmd_pauseResume");
1504 }
1505 }
1506 },
1507
1508 onDoubleClick: function DPV_onDoubleClick(aEvent) {
1509 if (aEvent.button != 0)
1510 return;
1511
1512 let selectedElements = this._richlistbox.selectedItems;
1513 if (selectedElements.length != 1)
1514 return;
1515
1516 let element = selectedElements[0];
1517 if (element._shell)
1518 element._shell.doDefaultCommand();
1519 },
1520
1521 onScroll: function DPV_onScroll() {
1522 this._ensureVisibleElementsAreActive();
1523 },
1524
1525 onSelect: function DPV_onSelect() {
1526 goUpdateDownloadCommands();
1527
1528 let selectedElements = this._richlistbox.selectedItems;
1529 for (let elt of selectedElements) {
1530 if (elt._shell)
1531 elt._shell.onSelect();
1532 }
1533 },
1534
1535 onDragStart: function DPV_onDragStart(aEvent) {
1536 // TODO Bug 831358: Support d&d for multiple selection.
1537 // For now, we just drag the first element.
1538 let selectedItem = this._richlistbox.selectedItem;
1539 if (!selectedItem)
1540 return;
1541
1542 let metaData = selectedItem._shell.getDownloadMetaData();
1543 if (!("filePath" in metaData))
1544 return;
1545 let file = new FileUtils.File(metaData.filePath);
1546 if (!file.exists())
1547 return;
1548
1549 let dt = aEvent.dataTransfer;
1550 dt.mozSetDataAt("application/x-moz-file", file, 0);
1551 let url = Services.io.newFileURI(file).spec;
1552 dt.setData("text/uri-list", url);
1553 dt.setData("text/plain", url);
1554 dt.effectAllowed = "copyMove";
1555 dt.addElement(selectedItem);
1556 },
1557
1558 onDragOver: function DPV_onDragOver(aEvent) {
1559 let types = aEvent.dataTransfer.types;
1560 if (types.contains("text/uri-list") ||
1561 types.contains("text/x-moz-url") ||
1562 types.contains("text/plain")) {
1563 aEvent.preventDefault();
1564 }
1565 },
1566
1567 onDrop: function DPV_onDrop(aEvent) {
1568 let dt = aEvent.dataTransfer;
1569 // If dragged item is from our source, do not try to
1570 // redownload already downloaded file.
1571 if (dt.mozGetDataAt("application/x-moz-file", 0))
1572 return;
1573
1574 let name = { };
1575 let url = Services.droppedLinkHandler.dropLink(aEvent, name);
1576 if (url) {
1577 let browserWin = RecentWindow.getMostRecentBrowserWindow();
1578 let initiatingDoc = browserWin ? browserWin.document : document;
1579 DownloadURL(url, name.value, initiatingDoc);
1580 }
1581 }
1582 };
1583
1584 for (let methodName of ["load", "applyFilter", "selectNode", "selectItems"]) {
1585 DownloadsPlacesView.prototype[methodName] = function() {
1586 throw new Error("|" + methodName + "| is not implemented by the downloads view.");
1587 }
1588 }
1589
1590 function goUpdateDownloadCommands() {
1591 for (let command of DOWNLOAD_VIEW_SUPPORTED_COMMANDS) {
1592 goUpdateCommand(command);
1593 }
1594 }

Mercurial Repository: The Tor Browser

Europalab SCM Repository Server

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