pr #3356

squashing commits.
2013-06-18 09:05:55 -07:00 · 2013-06-18 09:05:55 -07:00 · 83b6eaed16
commit 83b6eaed16
parent a2678c51d2
7 changed files with 1110 additions and 908 deletions
--- a/web/pdf_find_bar.js
+++ b/web/pdf_find_bar.js
@ -0,0 +1,174 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* Copyright 2012 Mozilla Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+/* globals PDFFindController, FindStates, mozL10n */
+
+/**
+ * Creates a "search bar" given set of DOM elements
+ * that act as controls for searching, or for setting
+ * search preferences in the UI. This object also sets
+ * up the appropriate events for the controls. Actual
+ * searching is done by PDFFindController
+ */
+var PDFFindBar = {
+
+  opened: false,
+  bar: null,
+  toggleButton: null,
+  findField: null,
+  highlightAll: null,
+  caseSensitive: null,
+  findMsg: null,
+  findStatusIcon: null,
+  findPreviousButton: null,
+  findNextButton: null,
+
+  initialize: function(options) {
+    if(typeof PDFFindController === 'undefined' || PDFFindController === null) {
+        throw 'PDFFindBar cannot be initialized ' +
+            'without a PDFFindController instance.';
+    }
+
+    this.bar = options.bar;
+    this.toggleButton = options.toggleButton;
+    this.findField = options.findField;
+    this.highlightAll = options.highlightAllCheckbox;
+    this.caseSensitive = options.caseSensitiveCheckbox;
+    this.findMsg = options.findMsg;
+    this.findStatusIcon = options.findStatusIcon;
+    this.findPreviousButton = options.findPreviousButton;
+    this.findNextButton = options.findNextButton;
+
+    var self = this;
+    this.toggleButton.addEventListener('click', function() {
+      self.toggle();
+    });
+
+    this.findField.addEventListener('input', function() {
+      self.dispatchEvent('');
+    });
+
+    this.bar.addEventListener('keydown', function(evt) {
+      switch (evt.keyCode) {
+        case 13: // Enter
+          if (evt.target === self.findField) {
+            self.dispatchEvent('again', evt.shiftKey);
+          }
+          break;
+        case 27: // Escape
+          self.close();
+          break;
+      }
+    });
+
+    this.findPreviousButton.addEventListener('click',
+      function() { self.dispatchEvent('again', true); }
+    );
+
+    this.findNextButton.addEventListener('click', function() {
+      self.dispatchEvent('again', false);
+    });
+
+    this.highlightAll.addEventListener('click', function() {
+      self.dispatchEvent('highlightallchange');
+    });
+
+    this.caseSensitive.addEventListener('click', function() {
+      self.dispatchEvent('casesensitivitychange');
+    });
+  },
+
+  dispatchEvent: function(aType, aFindPrevious) {
+    var event = document.createEvent('CustomEvent');
+    event.initCustomEvent('find' + aType, true, true, {
+      query: this.findField.value,
+      caseSensitive: this.caseSensitive.checked,
+      highlightAll: this.highlightAll.checked,
+      findPrevious: aFindPrevious
+    });
+    return window.dispatchEvent(event);
+  },
+
+  updateUIState: function(state, previous) {
+    var notFound = false;
+    var findMsg = '';
+    var status = '';
+
+    switch (state) {
+      case FindStates.FIND_FOUND:
+        break;
+
+      case FindStates.FIND_PENDING:
+        status = 'pending';
+        break;
+
+      case FindStates.FIND_NOTFOUND:
+        findMsg = mozL10n.get('find_not_found', null, 'Phrase not found');
+        notFound = true;
+        break;
+
+      case FindStates.FIND_WRAPPED:
+        if (previous) {
+          findMsg = mozL10n.get('find_reached_top', null,
+                      'Reached top of document, continued from bottom');
+        } else {
+          findMsg = mozL10n.get('find_reached_bottom', null,
+                                'Reached end of document, continued from top');
+        }
+        break;
+    }
+
+    if (notFound) {
+      this.findField.classList.add('notFound');
+    } else {
+      this.findField.classList.remove('notFound');
+    }
+
+    this.findField.setAttribute('data-status', status);
+    this.findMsg.textContent = findMsg;
+  },
+
+  open: function() {
+    if (this.opened) return;
+
+    this.opened = true;
+    this.toggleButton.classList.add('toggled');
+    this.bar.classList.remove('hidden');
+    this.findField.select();
+    this.findField.focus();
+  },
+
+  close: function() {
+    if (!this.opened) return;
+
+    this.opened = false;
+    this.toggleButton.classList.remove('toggled');
+    this.bar.classList.add('hidden');
+
+    PDFFindController.active = false;
+  },
+
+  toggle: function() {
+    if (this.opened) {
+      this.close();
+    } else {
+      this.open();
+    }
+  }
+};
+