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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/**
* @constructor
* @param {!WebInspector.ActionRegistry} actionRegistry
* @param {!Document} document
*/
WebInspector.ShortcutRegistry = function(actionRegistry, document)
{
this._actionRegistry = actionRegistry;
/** @type {!StringMultimap.<string>} */
this._defaultKeyToActions = new StringMultimap();
/** @type {!StringMultimap.<!WebInspector.KeyboardShortcut.Descriptor>} */
this._defaultActionToShortcut = new StringMultimap();
this._registerBindings(document);
}
WebInspector.ShortcutRegistry.prototype = {
/**
* @param {number} key
* @return {!Array.<string>}
*/
applicableActions: function(key)
{
return this._actionRegistry.applicableActions(this._defaultActionsForKey(key).valuesArray(), WebInspector.context);
},
/**
* @param {number} key
* @return {!Set.<string>}
*/
_defaultActionsForKey: function(key)
{
return this._defaultKeyToActions.get(String(key));
},
/**
* @param {string} actionId
* @return {!Array.<!WebInspector.KeyboardShortcut.Descriptor>}
*/
shortcutDescriptorsForAction: function(actionId)
{
return this._defaultActionToShortcut.get(actionId).valuesArray();
},
/**
* @param {!Array.<string>} actionIds
* @return {!Array.<number>}
*/
keysForActions: function(actionIds)
{
var result = [];
for (var i = 0; i < actionIds.length; ++i) {
var descriptors = this.shortcutDescriptorsForAction(actionIds[i]);
for (var j = 0; j < descriptors.length; ++j)
result.push(descriptors[j].key);
}
return result;
},
/**
* @param {!KeyboardEvent} event
*/
handleShortcut: function(event)
{
this.handleKey(WebInspector.KeyboardShortcut.makeKeyFromEvent(event), event.keyIdentifier, event);
},
/**
* @param {number} key
* @param {string} keyIdentifier
* @param {!KeyboardEvent=} event
*/
handleKey: function(key, keyIdentifier, event)
{
var keyModifiers = key >> 8;
var actionIds = this.applicableActions(key);
if (!actionIds.length)
return;
if (WebInspector.GlassPane.DefaultFocusedViewStack.length > 1) {
if (event && !isPossiblyInputKey())
event.consume(true);
return;
}
if (!isPossiblyInputKey()) {
if (event)
event.consume(true);
processActionIdsSequentially.call(this);
} else {
this._pendingActionTimer = setTimeout(processActionIdsSequentially.bind(this), 0);
}
/**
* @this {WebInspector.ShortcutRegistry}
*/
function processActionIdsSequentially()
{
delete this._pendingActionTimer;
var actionId = actionIds.shift();
if (!actionId)
return;
this._actionRegistry.execute(actionId).then(continueIfNecessary.bind(this));
/**
* @this {WebInspector.ShortcutRegistry}
*/
function continueIfNecessary(result)
{
if (result)
return;
processActionIdsSequentially.call(this);
}
}
/**
* @return {boolean}
*/
function isPossiblyInputKey()
{
if (!event || !WebInspector.isEditing() || /^F\d+|Control|Shift|Alt|Meta|Win|U\+001B$/.test(keyIdentifier))
return false;
if (!keyModifiers)
return true;
var modifiers = WebInspector.KeyboardShortcut.Modifiers;
if ((keyModifiers & (modifiers.Ctrl | modifiers.Alt)) === (modifiers.Ctrl | modifiers.Alt))
return WebInspector.isWin();
return !hasModifier(modifiers.Ctrl) && !hasModifier(modifiers.Alt) && !hasModifier(modifiers.Meta);
}
/**
* @param {number} mod
* @return {boolean}
*/
function hasModifier(mod)
{
return !!(keyModifiers & mod);
}
},
/**
* @param {string} actionId
* @param {string} shortcut
*/
registerShortcut: function(actionId, shortcut)
{
var descriptor = WebInspector.KeyboardShortcut.makeDescriptorFromBindingShortcut(shortcut);
if (!descriptor)
return;
this._defaultActionToShortcut.set(actionId, descriptor);
this._defaultKeyToActions.set(String(descriptor.key), actionId);
},
dismissPendingShortcutAction: function()
{
if (this._pendingActionTimer) {
clearTimeout(this._pendingActionTimer);
delete this._pendingActionTimer;
}
},
/**
* @param {!Document} document
*/
_registerBindings: function(document)
{
document.addEventListener("input", this.dismissPendingShortcutAction.bind(this), true);
var extensions = self.runtime.extensions(WebInspector.ActionDelegate);
extensions.forEach(registerExtension, this);
/**
* @param {!Runtime.Extension} extension
* @this {WebInspector.ShortcutRegistry}
*/
function registerExtension(extension)
{
var descriptor = extension.descriptor();
var bindings = descriptor["bindings"];
for (var i = 0; bindings && i < bindings.length; ++i) {
if (!platformMatches(bindings[i].platform))
continue;
var shortcuts = bindings[i]["shortcut"].split(/\s+/);
shortcuts.forEach(this.registerShortcut.bind(this, descriptor["actionId"]));
}
}
/**
* @param {string=} platformsString
* @return {boolean}
*/
function platformMatches(platformsString)
{
if (!platformsString)
return true;
var platforms = platformsString.split(",");
var isMatch = false;
var currentPlatform = WebInspector.platform();
for (var i = 0; !isMatch && i < platforms.length; ++i)
isMatch = platforms[i] === currentPlatform;
return isMatch;
}
}
}
/**
* @constructor
*/
WebInspector.ShortcutRegistry.ForwardedShortcut = function()
{
}
WebInspector.ShortcutRegistry.ForwardedShortcut.instance = new WebInspector.ShortcutRegistry.ForwardedShortcut();
/** @type {!WebInspector.ShortcutRegistry} */
WebInspector.shortcutRegistry;
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