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Bug 952456 - Part 2: Support copy image in BrowserElement. r=kchen

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Add a new context menu option, copy image.
This commit is contained in:
Boris Chiou 2015-08-17 15:49:20 -07:00
parent a3384ac51e
commit 82bc89b6d6
1 changed files with 44 additions and 18 deletions
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62
dom/browser-element/BrowserElementChildPreload.js
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@ -63,6 +63,7 @@ const OBSERVED_EVENTS = [
const COMMAND_MAP = {
'cut': 'cmd_cut',
'copy': 'cmd_copyAndCollapseToEnd',
'copyImage': 'cmd_copyImage',
'paste': 'cmd_paste',
'selectall': 'cmd_selectAll'
};
@ -855,6 +856,11 @@ BrowserElementChild.prototype = {
var elem = e.target;
var menuData = {systemTargets: [], contextmenu: null};
var ctxMenuId = null;
var hasImgElement = false;
// Set the event target as the copy image command needs it to
// determine what was context-clicked on.
docShell.contentViewer.QueryInterface(Ci.nsIContentViewerEdit).setCommandNode(elem);
while (elem && elem.parentNode) {
var ctxData = this._getSystemCtxMenuData(elem);
@ -868,14 +874,21 @@ BrowserElementChild.prototype = {
if (!ctxMenuId && 'hasAttribute' in elem && elem.hasAttribute('contextmenu')) {
ctxMenuId = elem.getAttribute('contextmenu');
}
// Enable copy image option
if (elem.nodeName == 'IMG') {
hasImgElement = true;
}
elem = elem.parentNode;
}
if (ctxMenuId) {
var menu = e.target.ownerDocument.getElementById(ctxMenuId);
if (menu) {
menuData.contextmenu = this._buildMenuObj(menu, '');
if (ctxMenuId || hasImgElement) {
var menu = null;
if (ctxMenuId) {
menu = e.target.ownerDocument.getElementById(ctxMenuId);
}
menuData.contextmenu = this._buildMenuObj(menu, '', hasImgElement);
}
// Pass along the position where the context menu should be located
@ -1208,31 +1221,44 @@ BrowserElementChild.prototype = {
_recvFireCtxCallback: function(data) {
debug("Received fireCtxCallback message: (" + data.json.menuitem + ")");
// We silently ignore if the embedder uses an incorrect id in the callback
if (data.json.menuitem in this._ctxHandlers) {
if (data.json.menuitem == 'copy-image') {
// Set command
data.json.command = 'copyImage';
this._recvDoCommand(data);
} else if (data.json.menuitem in this._ctxHandlers) {
this._ctxHandlers[data.json.menuitem].click();
this._ctxHandlers = {};
} else {
// We silently ignore if the embedder uses an incorrect id in the callback
debug("Ignored invalid contextmenu invocation");
}
},
_buildMenuObj: function(menu, idPrefix) {
_buildMenuObj: function(menu, idPrefix, hasImgElement) {
var menuObj = {type: 'menu', items: []};
this._maybeCopyAttribute(menu, menuObj, 'label');
// Customized context menu
if (menu) {
this._maybeCopyAttribute(menu, menuObj, 'label');
for (var i = 0, child; child = menu.children[i++];) {
if (child.nodeName === 'MENU') {
menuObj.items.push(this._buildMenuObj(child, idPrefix + i + '_'));
} else if (child.nodeName === 'MENUITEM') {
var id = this._ctxCounter + '_' + idPrefix + i;
var menuitem = {id: id, type: 'menuitem'};
this._maybeCopyAttribute(child, menuitem, 'label');
this._maybeCopyAttribute(child, menuitem, 'icon');
this._ctxHandlers[id] = child;
menuObj.items.push(menuitem);
for (var i = 0, child; child = menu.children[i++];) {
if (child.nodeName === 'MENU') {
menuObj.items.push(this._buildMenuObj(child, idPrefix + i + '_', false));
} else if (child.nodeName === 'MENUITEM') {
var id = this._ctxCounter + '_' + idPrefix + i;
var menuitem = {id: id, type: 'menuitem'};
this._maybeCopyAttribute(child, menuitem, 'label');
this._maybeCopyAttribute(child, menuitem, 'icon');
this._ctxHandlers[id] = child;
menuObj.items.push(menuitem);
}
}
}
// "Copy Image" menu item
if (hasImgElement) {
menuObj.items.push({id: 'copy-image'});
}
return menuObj;
},