[gnome-documents/wip/gepub] Refactor preview code into a base class
- From: Cosimo Cecchi <cosimoc src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gnome-documents/wip/gepub] Refactor preview code into a base class
- Date: Wed, 22 Jun 2016 13:40:41 +0000 (UTC)
commit 16a8a8328a8ffb919e7ec6b8629585b59cb60e91
Author: Cosimo Cecchi <cosimoc gnome org>
Date: Sun Jun 19 17:38:24 2016 -0700
Refactor preview code into a base class
Similarly to what we did for the navigation controls, also refactor a
base class for the preview view.
src/embed.js | 2 +-
src/epubview.js | 42 +++------------
src/evinceview.js | 147 ++++++++++++++++++++++++++---------------------------
src/lokview.js | 108 +++++++++++++++++----------------------
src/preview.js | 57 ++++++++++++++++++++
5 files changed, 185 insertions(+), 171 deletions(-)
---
diff --git a/src/embed.js b/src/embed.js
index 9703c18..fb5efed 100644
--- a/src/embed.js
+++ b/src/embed.js
@@ -380,8 +380,8 @@ const Embed = new Lang.Class({
else
docModel.set_sizing_mode(EvView.SizingMode.AUTOMATIC);
docModel.set_page_layout(EvView.PageLayout.AUTOMATIC);
- this._toolbar.setModel(docModel);
this._previewEv.setModel(docModel);
+ this._toolbar.setModel(docModel);
this._previewEv.grab_focus();
}
this._stack.set_visible_child_name('preview-ev');
diff --git a/src/epubview.js b/src/epubview.js
index 3abfc93..c4502b8 100644
--- a/src/epubview.js
+++ b/src/epubview.js
@@ -29,7 +29,6 @@ const _ = imports.gettext.gettext;
const Application = imports.application;
const Documents = imports.documents;
-const ErrorBox = imports.errorBox;
const MainToolbar = imports.mainToolbar;
const Preview = imports.preview;
const Searchbar = imports.searchbar;
@@ -44,19 +43,10 @@ function isEpub(mimeType) {
const EPUBView = new Lang.Class({
Name: 'EPUBView',
- Extends: Gtk.Stack,
+ Extends: Preview.Preview,
_init: function(overlay) {
- this.parent({ homogeneous: true,
- transition_type: Gtk.StackTransitionType.CROSSFADE });
-
- this._overlay = overlay;
-
- this._errorBox = new ErrorBox.ErrorBox();
- this.add_named(this._errorBox, 'error');
-
- this._createView();
- this.show_all();
+ this.parent(overlay);
Application.documentManager.connect('load-started',
Lang.bind(this, this._onLoadStarted));
@@ -71,6 +61,10 @@ const EPUBView = new Lang.Class({
findNext.connect('activate', Lang.bind(this, this._findNext));
},
+ createView: function() {
+ return new Gepub.Widget();
+ },
+
_findNext: function() {
let fc = this.view.get_find_controller();
fc.search_next();
@@ -84,7 +78,7 @@ const EPUBView = new Lang.Class({
_onWindowModeChanged: function() {
let windowMode = Application.modeController.getWindowMode();
if (windowMode != WindowMode.WindowMode.PREVIEW_EPUB)
- this._navControls.hide();
+ this.navControls.hide();
},
_onLoadStarted: function(manager, doc) {
@@ -103,30 +97,12 @@ const EPUBView = new Lang.Class({
if (doc.viewType != Documents.ViewType.EPUB)
return;
- this._setError(message, exception.message);
+ this.setError(message, exception.message);
},
reset: function () {
- if (!this.view)
- return;
-
this.set_visible_child_full('view', Gtk.StackTransitionType.NONE);
- this._navControls.show();
- },
-
- _createView: function() {
- this.view = new Gepub.Widget();
-
- this.add_named(this.view, 'view');
- this.view.show();
-
- this._navControls = new Preview.PreviewNavControls(this, this._overlay);
- this.set_visible_child_full('view', Gtk.StackTransitionType.NONE);
- },
-
- _setError: function(primary, secondary) {
- this._errorBox.update(primary, secondary);
- this.set_visible_child_name('error');
+ this.navControls.show();
},
goPrev: function() {
diff --git a/src/evinceview.js b/src/evinceview.js
index bbc8b07..6df1cfe 100644
--- a/src/evinceview.js
+++ b/src/evinceview.js
@@ -31,7 +31,6 @@ const Lang = imports.lang;
const Mainloop = imports.mainloop;
const Application = imports.application;
-const ErrorBox = imports.errorBox;
const MainToolbar = imports.mainToolbar;
const Places = imports.places;
const Preview = imports.preview;
@@ -45,7 +44,7 @@ const _FULLSCREEN_TOOLBAR_TIMEOUT = 2; // seconds
const EvinceView = new Lang.Class({
Name: 'EvinceView',
- Extends: Gtk.Stack,
+ Extends: Preview.Preview,
_init: function(overlay) {
this._model = null;
@@ -56,37 +55,19 @@ const EvinceView = new Lang.Class({
this._hasSelection = false;
this._viewSelectionChanged = false;
this._fsToolbar = null;
- this._overlay = overlay;
this._lastSearch = '';
+ this.parent(overlay);
+
Application.modeController.connect('fullscreen-changed', Lang.bind(this,
this._onFullscreenChanged));
Application.modeController.connect('window-mode-changed', Lang.bind(this,
this._onWindowModeChanged));
- this.parent({ homogeneous: true,
- transition_type: Gtk.StackTransitionType.CROSSFADE });
-
- this._errorBox = new ErrorBox.ErrorBox();
- this.add_named(this._errorBox, 'error');
-
- this._sw = new Gtk.ScrolledWindow({ hexpand: true,
- vexpand: true });
- this._sw.get_style_context().add_class('documents-scrolledwin');
- this._sw.get_hscrollbar().connect('button-press-event', Lang.bind(this, this._onScrollbarClick));
- this._sw.get_vscrollbar().connect('button-press-event', Lang.bind(this, this._onScrollbarClick));
- this._sw.get_hadjustment().connect('value-changed', Lang.bind(this, this._onAdjustmentChanged));
- this._sw.get_vadjustment().connect('value-changed', Lang.bind(this, this._onAdjustmentChanged));
- this.add_named(this._sw, 'view');
-
- this._createView();
-
// create context menu
let model = this._getEvinceViewContextMenu();
this._previewContextMenu = Gtk.Menu.new_from_model(model);
- this._previewContextMenu.attach_to_widget(this._sw, null);
-
- this.show_all();
+ this._previewContextMenu.attach_to_widget(this.view, null);
this._bookmarkPage = Application.application.lookup_action('bookmark-page');
this._bookmarkPage.enabled = false;
@@ -99,7 +80,7 @@ const EvinceView = new Lang.Class({
if (!this._model)
return;
this._model.set_sizing_mode(EvView.SizingMode.FREE);
- this.view.zoom_in();
+ this._evView.zoom_in();
}));
this._zoomOut = Application.application.lookup_action('zoom-out');
@@ -108,23 +89,23 @@ const EvinceView = new Lang.Class({
if (!this._model)
return;
this._model.set_sizing_mode(EvView.SizingMode.FREE);
- this.view.zoom_out();
+ this._evView.zoom_out();
}));
let findPrev = Application.application.lookup_action('find-prev');
let findPrevId = findPrev.connect('activate', Lang.bind(this,
function() {
- this.view.find_previous();
+ this._evView.find_previous();
}));
let findNext = Application.application.lookup_action('find-next');
let findNextId = findNext.connect('activate', Lang.bind(this,
function() {
- this.view.find_next();
+ this._evView.find_next();
}));
this._copy = Application.application.lookup_action('copy');
let copyId = this._copy.connect('activate', Lang.bind(this,
function() {
- this.view.copy();
+ this._evView.copy();
}));
let rotLeft = Application.application.lookup_action('rotate-left');
@@ -172,6 +153,39 @@ const EvinceView = new Lang.Class({
}));
},
+ createNavControls: function() {
+ return new EvinceViewNavControls(this, this.overlay);
+ },
+
+ createView: function() {
+ let sw = new Gtk.ScrolledWindow({ hexpand: true,
+ vexpand: true });
+ sw.get_style_context().add_class('documents-scrolledwin');
+ sw.get_hscrollbar().connect('button-press-event', Lang.bind(this, this._onScrollbarClick));
+ sw.get_vscrollbar().connect('button-press-event', Lang.bind(this, this._onScrollbarClick));
+ sw.get_hadjustment().connect('value-changed', Lang.bind(this, this._onAdjustmentChanged));
+ sw.get_vadjustment().connect('value-changed', Lang.bind(this, this._onAdjustmentChanged));
+
+ this._evView = EvView.View.new();
+ sw.add(this._evView);
+ this._evView.show();
+
+ this._evView.connect('notify::can-zoom-in', Lang.bind(this,
+ this._onCanZoomInChanged));
+ this._evView.connect('notify::can-zoom-out', Lang.bind(this,
+ this._onCanZoomOutChanged));
+ this._evView.connect('button-press-event', Lang.bind(this,
+ this._onButtonPressEvent));
+ this._evView.connect('button-release-event', Lang.bind(this,
+ this._onButtonReleaseEvent));
+ this._evView.connect('selection-changed', Lang.bind(this,
+ this._onViewSelectionChanged));
+ this._evView.connect('external-link', Lang.bind(this,
+ this._handleExternalLink));
+
+ return sw;
+ },
+
_onLoadStarted: function(manager, doc) {
if (doc.viewType != Documents.ViewType.EV)
return;
@@ -185,7 +199,7 @@ const EvinceView = new Lang.Class({
return;
this._controlsVisible = true;
this._syncControlsVisible();
- this._setError(message, exception.message);
+ this.setError(message, exception.message);
},
_onActionStateChanged: function(source, actionName, state) {
@@ -224,11 +238,6 @@ const EvinceView = new Lang.Class({
this._bookmarkPage.change_state(GLib.Variant.new('b', hasBookmark));
},
- _setError: function(primary, secondary) {
- this._errorBox.update(primary, secondary);
- this.set_visible_child_name('error');
- },
-
_showPlaces: function() {
let dialog = new Places.PlacesDialog(this._model, this._bookmarks);
dialog.connect('response', Lang.bind(this,
@@ -272,7 +281,7 @@ const EvinceView = new Lang.Class({
},
_onViewSelectionChanged: function() {
- let hasSelection = this.view.get_has_selection();
+ let hasSelection = this._evView.get_has_selection();
this._copy.enabled = hasSelection;
if (!hasSelection &&
@@ -344,33 +353,11 @@ const EvinceView = new Lang.Class({
},
_onCanZoomInChanged: function() {
- this._zoomIn.enabled = this.view.can_zoom_in;
+ this._zoomIn.enabled = this._evView.can_zoom_in;
},
_onCanZoomOutChanged: function() {
- this._zoomOut.enabled = this.view.can_zoom_out;
- },
-
- _createView: function() {
- this.view = EvView.View.new();
- this._sw.add(this.view);
- this.view.show();
-
- this.view.connect('notify::can-zoom-in', Lang.bind(this,
- this._onCanZoomInChanged));
- this.view.connect('notify::can-zoom-out', Lang.bind(this,
- this._onCanZoomOutChanged));
- this.view.connect('button-press-event', Lang.bind(this,
- this._onButtonPressEvent));
- this.view.connect('button-release-event', Lang.bind(this,
- this._onButtonReleaseEvent));
- this.view.connect('selection-changed', Lang.bind(this,
- this._onViewSelectionChanged));
- this.view.connect('external-link', Lang.bind(this,
- this._handleExternalLink));
-
- this._navControls = new EvinceViewNavControls(this, this._overlay);
- this.set_visible_child_full('view', Gtk.StackTransitionType.NONE);
+ this._zoomOut.enabled = this._evView.can_zoom_out;
},
_getEvinceViewContextMenu: function() {
@@ -394,7 +381,7 @@ const EvinceView = new Lang.Class({
if (windowMode != WindowMode.WindowMode.PREVIEW_EV) {
this.controlsVisible = false;
this._hidePresentation();
- this._navControls.hide();
+ this.navControls.hide();
}
},
@@ -405,7 +392,7 @@ const EvinceView = new Lang.Class({
// create fullscreen toolbar (hidden by default)
this._fsToolbar = new EvinceViewFullscreenToolbar(this);
this._fsToolbar.setModel(this._model);
- this._overlay.add_overlay(this._fsToolbar);
+ this.overlay.add_overlay(this._fsToolbar);
this._fsToolbar.connectJS('show-controls', Lang.bind(this,
function() {
@@ -505,7 +492,7 @@ const EvinceView = new Lang.Class({
},
activateResult: function() {
- this.view.find_next();
+ this._evView.find_next();
},
startSearch: function(str) {
@@ -521,7 +508,7 @@ const EvinceView = new Lang.Class({
this._lastSearch = str;
if (!str) {
- this.view.queue_draw();
+ this._evView.queue_draw();
return;
}
@@ -536,22 +523,28 @@ const EvinceView = new Lang.Class({
_onSearchJobUpdated: function(job, page) {
// FIXME: ev_job_find_get_results() returns a GList **
// and thus is not introspectable
- GdPrivate.ev_view_find_changed(this.view, job, page);
+ GdPrivate.ev_view_find_changed(this._evView, job, page);
this.emitJS('search-changed', job.has_results());
},
reset: function() {
this.setModel(null);
this.view.destroy();
- this._navControls.destroy();
- this._createView();
+ this.navControls.destroy();
+
+ this.view = this.createView();
+ this.add_named(this.view, 'view');
+ this.set_visible_child_full('view', Gtk.StackTransitionType.NONE);
+
+ this.navControls = this.createNavControls();
+ this.show_all();
},
setModel: function(model) {
if (this._model == model)
return;
- if (this.view) {
+ if (this._evView) {
this.controlsVisible = false;
this._lastSearch = '';
}
@@ -559,9 +552,9 @@ const EvinceView = new Lang.Class({
this._model = model;
if (this._model) {
- this.view.set_model(this._model);
- this._navControls.setModel(model);
- this._navControls.show();
+ this._evView.set_model(this._model);
+ this.navControls.setModel(model);
+ this.navControls.show();
if (this._togglePresentation)
this._togglePresentation.enabled = true;
@@ -607,11 +600,11 @@ const EvinceView = new Lang.Class({
},
goPrev: function() {
- this.view.previous_page();
+ this._evView.previous_page();
},
goNext: function() {
- this.view.next_page();
+ this._evView.next_page();
},
get hasPages() {
@@ -624,6 +617,10 @@ const EvinceView = new Lang.Class({
get numPages() {
return this._model ? this._model.document.get_n_pages() : 0;
+ },
+
+ get evView() {
+ return this._evView;
}
});
Utils.addJSSignalMethods(EvinceView.prototype);
@@ -840,7 +837,7 @@ const EvinceViewSearchbar = new Lang.Class({
},
entryChanged: function() {
- this._previewView.view.find_search_changed();
+ this._previewView.evView.find_search_changed();
this._previewView.startSearch(this._searchEntry.get_text());
},
@@ -852,12 +849,12 @@ const EvinceViewSearchbar = new Lang.Class({
this._searchEntry.select_region(0, -1);
}
- this._previewView.view.find_set_highlight_search(true);
+ this._previewView.evView.find_set_highlight_search(true);
this._previewView.startSearch(this._searchEntry.get_text());
},
conceal: function() {
- this._previewView.view.find_set_highlight_search(false);
+ this._previewView.evView.find_set_highlight_search(false);
this.searchChangeBlocked = true;
this.parent();
diff --git a/src/lokview.js b/src/lokview.js
index 85a4119..117519c 100644
--- a/src/lokview.js
+++ b/src/lokview.js
@@ -34,7 +34,6 @@ const Lang = imports.lang;
const Signals = imports.signals;
const Application = imports.application;
-const ErrorBox = imports.errorBox;
const MainToolbar = imports.mainToolbar;
const Preview = imports.preview;
const Documents = imports.documents;
@@ -95,36 +94,22 @@ function isOpenDocumentFormat(mimeType) {
const LOKView = new Lang.Class({
Name: 'LOKView',
- Extends: Gtk.Stack,
+ Extends: Preview.Preview,
_init: function(overlay) {
- this.parent({ homogeneous: true,
- transition_type: Gtk.StackTransitionType.CROSSFADE });
+ this.parent(overlay);
this._uri = null;
- this._overlay = overlay;
- this.get_style_context().add_class('documents-scrolledwin');
-
- this._errorBox = new ErrorBox.ErrorBox();
- this.add_named(this._errorBox, 'error');
-
- this._sw = new Gtk.ScrolledWindow({hexpand: true,
- vexpand: true});
this._progressBar = new Gtk.ProgressBar({ halign: Gtk.Align.FILL,
valign: Gtk.Align.START });
this._progressBar.get_style_context().add_class('osd');
- this._overlay.add_overlay(this._progressBar);
-
- this.add_named(this._sw, 'view');
- this._createView();
+ this.overlay.add_overlay(this._progressBar);
// create context menu
let model = this._getPreviewContextMenu();
this._previewContextMenu = Gtk.Menu.new_from_model(model);
- this._previewContextMenu.attach_to_widget(this._sw, null);
-
- this.show_all();
+ this._previewContextMenu.attach_to_widget(this.view, null);
this._zoomIn = Application.application.lookup_action('zoom-in');
let zoomInId = this._zoomIn.connect('activate', Lang.bind(this,
@@ -132,8 +117,8 @@ const LOKView = new Lang.Class({
// FIXME: https://bugs.documentfoundation.org/show_bug.cgi?id=97301
if (!this._doc)
return;
- let zoomLevel = this.view.get_zoom() * ZOOM_IN_FACTOR;
- this.view.set_zoom(zoomLevel);
+ let zoomLevel = this._lokview.get_zoom() * ZOOM_IN_FACTOR;
+ this._lokview.set_zoom(zoomLevel);
}));
this._zoomOut = Application.application.lookup_action('zoom-out');
@@ -142,8 +127,8 @@ const LOKView = new Lang.Class({
// FIXME: https://bugs.documentfoundation.org/show_bug.cgi?id=97301
if (!this._doc)
return;
- let zoomLevel = this.view.get_zoom() * ZOOM_OUT_FACTOR;
- this.view.set_zoom(zoomLevel);
+ let zoomLevel = this._lokview.get_zoom() * ZOOM_OUT_FACTOR;
+ this._lokview.set_zoom(zoomLevel);
}));
this._copy = Application.application.lookup_action('copy');
@@ -162,16 +147,36 @@ const LOKView = new Lang.Class({
}));
},
+ createView: function() {
+ let sw = new Gtk.ScrolledWindow({ hexpand: true,
+ vexpand: true });
+ sw.get_style_context().add_class('documents-scrolledwin');
+
+ if (isAvailable()) {
+ this._lokview = LOKDocView.View.new(null, null, null);
+ sw.add(this._lokview);
+
+ this._lokview.show();
+ this._lokview.connect('button-press-event', Lang.bind(this, this._onButtonPressEvent));
+ this._lokview.connect('load-changed', Lang.bind(this, this._onProgressChanged));
+ this._lokview.connect('text-selection', Lang.bind(this, this._onTextSelection));
+ this._lokview.connect('notify::can-zoom-in', Lang.bind(this, this._onCanZoomInChanged));
+ this._lokview.connect('notify::can-zoom-out', Lang.bind(this, this._onCanZoomOutChanged));
+ }
+
+ return sw;
+ },
+
_onCanZoomInChanged: function() {
- this._zoomIn.enabled = this.view.can_zoom_in;
+ this._zoomIn.enabled = this._lokview.can_zoom_in;
},
_onCanZoomOutChanged: function() {
- this._zoomOut.enabled = this.view.can_zoom_out;
+ this._zoomOut.enabled = this._lokview.can_zoom_out;
},
_onCopyActivated: function() {
- let [selectedText, mimeType] = this.view.copy_selection('text/plain;charset=utf-8');
+ let [selectedText, mimeType] = this._lokview.copy_selection('text/plain;charset=utf-8');
let display = Gdk.Display.get_default();
let clipboard = Gtk.Clipboard.get_default(display);
@@ -185,7 +190,7 @@ const LOKView = new Lang.Class({
return;
this._doc = doc;
this._copy.enabled = false;
- this.view.open_document(doc.uri, "{}", null, Lang.bind(this, this.open_document_cb));
+ this._lokview.open_document(doc.uri, "{}", null, Lang.bind(this, this.open_document_cb));
this._progressBar.show();
},
@@ -193,43 +198,27 @@ const LOKView = new Lang.Class({
if (doc.viewType != Documents.ViewType.LOK)
return;
//FIXME we should hide controls
- this._setError(message, exception.message);
+ this.setError(message, exception.message);
},
open_document_cb: function(res, doc) {
// TODO: Call _finish and check failure
this._progressBar.hide();
this.set_visible_child_name('view');
- this.view.set_edit(false);
+ this._lokview.set_edit(false);
},
reset: function () {
- if (!this.view)
+ if (!this._lokview)
return;
// FIXME: https://bugs.documentfoundation.org/show_bug.cgi?id=97235
if (this._doc)
- this.view.reset_view();
+ this._lokview.reset_view();
this.set_visible_child_full('view', Gtk.StackTransitionType.NONE);
this._copy.enabled = false;
},
- _createView: function() {
- if (isAvailable()) {
- this.view = LOKDocView.View.new(null, null, null);
- this._sw.add(this.view);
- this.view.show();
- this.view.connect('button-press-event', Lang.bind(this, this._onButtonPressEvent));
- this.view.connect('load-changed', Lang.bind(this, this._onProgressChanged));
- this.view.connect('text-selection', Lang.bind(this, this._onTextSelection));
- this.view.connect('notify::can-zoom-in', Lang.bind(this, this._onCanZoomInChanged));
- this.view.connect('notify::can-zoom-out', Lang.bind(this, this._onCanZoomOutChanged));
- }
-
- this._navControls = new Preview.PreviewNavControls(this, this._overlay);
- this.set_visible_child_full('view', Gtk.StackTransitionType.NONE);
- },
-
_getPreviewContextMenu: function() {
let builder = new Gtk.Builder();
builder.add_from_resource('/org/gnome/Documents/ui/preview-context-menu.ui');
@@ -249,37 +238,32 @@ const LOKView = new Lang.Class({
},
_onProgressChanged: function() {
- this._progressBar.fraction = this.view.load_progress;
+ this._progressBar.fraction = this._lokview.load_progress;
},
_onTextSelection: function(hasSelection) {
this._copy.enabled = hasSelection;
},
- _setError: function(primary, secondary) {
- this._errorBox.update(primary, secondary);
- this.set_visible_child_name('error');
- },
-
goPrev: function() {
- let currentPart = this.view.get_part();
+ let currentPart = this._lokview.get_part();
currentPart -= 1;
if (currentPart < 0)
return;
- this.view.set_part(currentPart);
+ this._lokview.set_part(currentPart);
// FIXME: https://bugs.documentfoundation.org/show_bug.cgi?id=97236
- this.view.reset_view();
+ this._lokview.reset_view();
},
goNext: function() {
- let totalParts = this.view.get_parts();
- let currentPart = this.view.get_part();
+ let totalParts = this._lokview.get_parts();
+ let currentPart = this._lokview.get_part();
currentPart += 1;
if (currentPart > totalParts)
return;
- this.view.set_part(currentPart);
+ this._lokview.set_part(currentPart);
// FIXME: https://bugs.documentfoundation.org/show_bug.cgi?id=97236
- this.view.reset_view();
+ this._lokview.reset_view();
},
get hasPages() {
@@ -287,11 +271,11 @@ const LOKView = new Lang.Class({
},
get page() {
- return this.view.get_part();
+ return this._lokview.get_part();
},
get numPages() {
- return this.view.get_parts();
+ return this._lokview.get_parts();
}
});
Signals.addSignalMethods(LOKView.prototype);
diff --git a/src/preview.js b/src/preview.js
index 3fd5553..c9b7d53 100644
--- a/src/preview.js
+++ b/src/preview.js
@@ -6,6 +6,63 @@ const Lang = imports.lang;
const Mainloop = imports.mainloop;
const Tweener = imports.tweener.tweener;
+const ErrorBox = imports.errorBox;
+
+const Preview = new Lang.Class({
+ Name: 'Preview',
+ Extends: Gtk.Stack,
+
+ _init: function(overlay) {
+ this.overlay = overlay;
+
+ this.parent({ homogeneous: true,
+ transition_type: Gtk.StackTransitionType.CROSSFADE });
+
+ this._errorBox = new ErrorBox.ErrorBox();
+ this.add_named(this._errorBox, 'error');
+
+ this.view = this.createView();
+ this.add_named(this.view, 'view');
+ this.set_visible_child_full('view', Gtk.StackTransitionType.NONE);
+
+ this.navControls = this.createNavControls();
+ this.show_all();
+ },
+
+ createNavControls: function() {
+ return new PreviewNavControls(this, this.overlay);
+ },
+
+ createView: function() {
+ throw(new Error('Not implemented'));
+ },
+
+ setError: function(primary, secondary) {
+ this._errorBox.update(primary, secondary);
+ this.set_visible_child_name('error');
+ },
+
+ goPrev: function() {
+ throw (new Error('Not implemented'));
+ },
+
+ goNext: function() {
+ throw (new Error('Not implemented'));
+ },
+
+ get hasPages() {
+ return false;
+ },
+
+ get page() {
+ return 0;
+ },
+
+ get numPages() {
+ return 0;
+ }
+});
+
const _AUTO_HIDE_TIMEOUT = 2;
const PREVIEW_NAVBAR_MARGIN = 30;
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