michael@0: /*
michael@0:  * BrowserTouchHandler
michael@0:  *
michael@0:  * Receives touch events from our input event capturing in input.js
michael@0:  * and relays appropriate events to content. Also handles requests
michael@0:  * from content for UI.
michael@0:  */
michael@0: 
michael@0: const BrowserTouchHandler = {
michael@0:   _debugEvents: false,
michael@0: 
michael@0:   init: function init() {
michael@0:     // Misc. events we catch during the bubbling phase
michael@0:     document.addEventListener("PopupChanged", this, false);
michael@0:     document.addEventListener("CancelTouchSequence", this, false);
michael@0: 
michael@0:     // Messages sent from content.js
michael@0:     messageManager.addMessageListener("Content:ContextMenu", this);
michael@0:     messageManager.addMessageListener("Content:SelectionCaret", this);
michael@0:   },
michael@0: 
michael@0:   // Content forwarding the contextmenu command
michael@0:   _onContentContextMenu: function _onContentContextMenu(aMessage) {
michael@0:     // Note, target here is the target of the message manager message,
michael@0:     // usually the browser.
michael@0:     // Touch input selection handling
michael@0:     if (!InputSourceHelper.isPrecise &&
michael@0:         !SelectionHelperUI.isActive &&
michael@0:         SelectionHelperUI.canHandleContextMenuMsg(aMessage)) {
michael@0:       SelectionHelperUI.openEditSession(aMessage.target,
michael@0:                                         aMessage.json.xPos,
michael@0:                                         aMessage.json.yPos);
michael@0:       return;
michael@0:     }
michael@0: 
michael@0:     // Check to see if we have context menu item(s) that apply to what
michael@0:     // was clicked on.
michael@0:     let contextInfo = { name: aMessage.name,
michael@0:                         json: aMessage.json,
michael@0:                         target: aMessage.target };
michael@0:     if (ContextMenuUI.showContextMenu(contextInfo)) {
michael@0:       let event = document.createEvent("Events");
michael@0:       event.initEvent("CancelTouchSequence", true, false);
michael@0:       document.dispatchEvent(event);
michael@0:     } else {
michael@0:       // Send the MozEdgeUIGesture to input.js to
michael@0:       // toggle the context ui.
michael@0:       let event = document.createEvent("Events");
michael@0:       event.initEvent("MozEdgeUICompleted", true, false);
michael@0:       window.dispatchEvent(event);
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   /*
michael@0:    * Called when Content wants to initiate selection management
michael@0:    * due to a tap in a form input.
michael@0:    */
michael@0:   _onCaretSelectionStarted: function _onCaretSelectionStarted(aMessage) {
michael@0:     SelectionHelperUI.attachToCaret(aMessage.target,
michael@0:                                     aMessage.json.xPos,
michael@0:                                     aMessage.json.yPos);
michael@0:   },
michael@0: 
michael@0:   /*
michael@0:    * Events
michael@0:    */
michael@0: 
michael@0:   handleEvent: function handleEvent(aEvent) {
michael@0:     // ignore content events we generate
michael@0:     if (aEvent.target == document)
michael@0:       return;
michael@0: 
michael@0:     if (this._debugEvents)
michael@0:       Util.dumpLn("BrowserTouchHandler:", aEvent.type);
michael@0: 
michael@0:     switch (aEvent.type) {
michael@0:       case "PopupChanged":
michael@0:       case "CancelTouchSequence":
michael@0:         if (!aEvent.detail)
michael@0:           ContextMenuUI.reset();
michael@0:         break;
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   receiveMessage: function receiveMessage(aMessage) {
michael@0:     if (this._debugEvents) Util.dumpLn("BrowserTouchHandler:", aMessage.name);
michael@0:     switch (aMessage.name) {
michael@0:       // Content forwarding the contextmenu command
michael@0:       case "Content:ContextMenu":
michael@0:         this._onContentContextMenu(aMessage);
michael@0:         break;
michael@0:       case "Content:SelectionCaret":
michael@0:         this._onCaretSelectionStarted(aMessage);
michael@0:         break;
michael@0:     }
michael@0:   },
michael@0: };