The Tor Browser / file comparison
comparison: layout/ipc/test-ipcbrowser-chrome.js
layout/ipc/test-ipcbrowser-chrome.js
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
equal
deleted
inserted
replaced
| -1:000000000000 | 0:cb3cf46d839f |
|---|---|
| 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 | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 function init() { | |
| 6 enableAsyncScrolling(); | |
| 7 messageManager.loadFrameScript( | |
| 8 "chrome://global/content/test-ipcbrowser-content.js", true | |
| 9 ); | |
| 10 } | |
| 11 | |
| 12 function browser() { | |
| 13 return document.getElementById("content"); | |
| 14 } | |
| 15 | |
| 16 function frameLoader() { | |
| 17 return browser().QueryInterface(Components.interfaces.nsIFrameLoaderOwner).frameLoader; | |
| 18 } | |
| 19 | |
| 20 function viewManager() { | |
| 21 return frameLoader().QueryInterface(Components.interfaces.nsIContentViewManager); | |
| 22 } | |
| 23 | |
| 24 function rootView() { | |
| 25 return viewManager().rootContentView; | |
| 26 } | |
| 27 | |
| 28 function enableAsyncScrolling() { | |
| 29 frameLoader().renderMode = Components.interfaces.nsIFrameLoader.RENDER_MODE_ASYNC_SCROLL; | |
| 30 } | |
| 31 | |
| 32 // Functions affecting the content window. | |
| 33 | |
| 34 function loadURL(url) { | |
| 35 browser().setAttribute('src', url); | |
| 36 } | |
| 37 | |
| 38 function scrollContentBy(dx, dy) { | |
| 39 messageManager.broadcastAsyncMessage("scrollBy", | |
| 40 { dx: dx, dy: dy }); | |
| 41 | |
| 42 } | |
| 43 | |
| 44 function scrollContentTo(x, y) { | |
| 45 messageManager.broadcastAsyncMessage("scrollTo", | |
| 46 { x: x, y: y }); | |
| 47 } | |
| 48 | |
| 49 function setContentViewport(w, h) { | |
| 50 messageManager.broadcastAsyncMessage("setViewport", | |
| 51 { w: w, h: h }); | |
| 52 } | |
| 53 | |
| 54 function setContentDisplayPort(x, y, w, h) { | |
| 55 messageManager.broadcastAsyncMessage("setDisplayPort", | |
| 56 { x: x, y: y, w: w, h: h }); | |
| 57 } | |
| 58 | |
| 59 function setContentResolution(xres, yres) { | |
| 60 messageManager.broadcastAsyncMessage("setResolution", | |
| 61 { xres: xres, yres: yres }); | |
| 62 } | |
| 63 | |
| 64 // Functions affecting <browser>. | |
| 65 | |
| 66 function scrollViewportBy(dx, dy) { | |
| 67 rootView().scrollBy(dx, dy); | |
| 68 } | |
| 69 | |
| 70 function scrollViewportTo(x, y) { | |
| 71 rootView().scrollTo(x, y); | |
| 72 } | |
| 73 | |
| 74 function setViewportScale(xs, ys) { | |
| 75 rootView().setScale(xs, ys); | |
| 76 } | |
| 77 | |
| 78 var kDelayMs = 100; | |
| 79 var kDurationMs = 250; | |
| 80 var scrolling = false; | |
| 81 function startAnimatedScrollBy(dx, dy) { | |
| 82 if (scrolling) | |
| 83 throw "don't interrupt me!"; | |
| 84 | |
| 85 scrolling = true; | |
| 86 | |
| 87 var start = mozAnimationStartTime; | |
| 88 var end = start + kDurationMs; | |
| 89 // |- k| so that we do something in first invocation of nudge() | |
| 90 var prevNow = start - 20; | |
| 91 var accumDx = 0, accumDy = 0; | |
| 92 | |
| 93 var sentScrollBy = false; | |
| 94 function nudgeScroll(now) { | |
| 95 if (!scrolling) { | |
| 96 // we've been canceled | |
| 97 return; | |
| 98 } | |
| 99 var ddx = dx * (now - prevNow) / kDurationMs; | |
| 100 var ddy = dy * (now - prevNow) / kDurationMs; | |
| 101 | |
| 102 ddx = Math.min(dx - accumDx, ddx); | |
| 103 ddy = Math.min(dy - accumDy, ddy); | |
| 104 accumDx += ddx; | |
| 105 accumDy += ddy; | |
| 106 | |
| 107 rootView().scrollBy(ddx, ddy); | |
| 108 | |
| 109 if (!sentScrollBy && 100 <= (now - start)) { | |
| 110 messageManager.broadcastAsyncMessage("scrollBy", | |
| 111 { dx: dx, dy: dy }); | |
| 112 sentScrollBy = true; | |
| 113 } | |
| 114 | |
| 115 if (now >= end || (accumDx >= dx && accumDy >= dy)) { | |
| 116 var fixupDx = Math.max(dx - accumDx, 0); | |
| 117 var fixupDy = Math.max(dy - accumDy, 0); | |
| 118 rootView().scrollBy(fixupDx, fixupDy); | |
| 119 | |
| 120 scrolling = false; | |
| 121 } | |
| 122 else { | |
| 123 mozRequestAnimationFrame(nudgeScroll); | |
| 124 } | |
| 125 | |
| 126 prevNow = now; | |
| 127 } | |
| 128 | |
| 129 nudgeScroll(start); | |
| 130 mozRequestAnimationFrame(nudgeScroll); | |
| 131 } |
