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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "chrome/browser/ui/views/constrained_window_views.h" | |
| 6 | |
| 7 #include <algorithm> | |
| 8 | |
| 9 #include "chrome/browser/ui/browser_finder.h" | |
| 10 #include "components/web_modal/popup_manager.h" | |
| 11 #include "components/web_modal/web_contents_modal_dialog_host.h" | |
| 12 #include "extensions/browser/guest_view/guest_view_base.h" | |
| 13 #include "ui/views/border.h" | |
| 14 #include "ui/views/widget/widget.h" | |
| 15 #include "ui/views/widget/widget_observer.h" | |
| 16 #include "ui/views/window/dialog_delegate.h" | |
| 17 | |
| 18 using web_modal::ModalDialogHost; | |
| 19 using web_modal::ModalDialogHostObserver; | |
| 20 | |
| 21 namespace { | |
| 22 // The name of a key to store on the window handle to associate | |
| 23 // BrowserModalDialogHostObserverViews with the Widget. | |
| 24 const char* const kBrowserModalDialogHostObserverViewsKey = | |
| 25 "__BROWSER_MODAL_DIALOG_HOST_OBSERVER_VIEWS__"; | |
| 26 | |
| 27 // Applies positioning changes from the ModalDialogHost to the Widget. | |
| 28 class BrowserModalDialogHostObserverViews | |
| 29 : public views::WidgetObserver, | |
| 30 public ModalDialogHostObserver { | |
| 31 public: | |
| 32 BrowserModalDialogHostObserverViews(ModalDialogHost* host, | |
| 33 views::Widget* target_widget, | |
| 34 const char *const native_window_property) | |
| 35 : host_(host), | |
| 36 target_widget_(target_widget), | |
| 37 native_window_property_(native_window_property) { | |
| 38 DCHECK(host_); | |
| 39 DCHECK(target_widget_); | |
| 40 host_->AddObserver(this); | |
| 41 target_widget_->AddObserver(this); | |
| 42 } | |
| 43 | |
| 44 virtual ~BrowserModalDialogHostObserverViews() { | |
| 45 if (host_) | |
| 46 host_->RemoveObserver(this); | |
| 47 target_widget_->RemoveObserver(this); | |
| 48 target_widget_->SetNativeWindowProperty(native_window_property_, NULL); | |
| 49 } | |
| 50 | |
| 51 // WidgetObserver overrides | |
| 52 virtual void OnWidgetClosing(views::Widget* widget) override { | |
| 53 delete this; | |
| 54 } | |
| 55 | |
| 56 // WebContentsModalDialogHostObserver overrides | |
| 57 virtual void OnPositionRequiresUpdate() override { | |
| 58 UpdateBrowserModalDialogPosition(target_widget_, host_); | |
| 59 } | |
| 60 | |
| 61 virtual void OnHostDestroying() override { | |
| 62 host_->RemoveObserver(this); | |
| 63 host_ = NULL; | |
| 64 } | |
| 65 | |
| 66 private: | |
| 67 ModalDialogHost* host_; | |
| 68 views::Widget* target_widget_; | |
| 69 const char* const native_window_property_; | |
| 70 | |
| 71 DISALLOW_COPY_AND_ASSIGN(BrowserModalDialogHostObserverViews); | |
| 72 }; | |
| 73 | |
| 74 void UpdateModalDialogPosition(views::Widget* widget, | |
| 75 web_modal::ModalDialogHost* dialog_host, | |
| 76 const gfx::Size& size) { | |
| 77 // Do not forcibly update the dialog widget position if it is being dragged. | |
| 78 if (widget->HasCapture()) | |
| 79 return; | |
| 80 | |
| 81 gfx::Point position = dialog_host->GetDialogPosition(size); | |
| 82 views::Border* border = widget->non_client_view()->frame_view()->border(); | |
| 83 // Border may be null during widget initialization. | |
| 84 if (border) { | |
| 85 // Align the first row of pixels inside the border. This is the apparent | |
| 86 // top of the dialog. | |
| 87 position.set_y(position.y() - border->GetInsets().top()); | |
| 88 } | |
| 89 | |
| 90 if (widget->is_top_level()) { | |
| 91 position += | |
| 92 views::Widget::GetWidgetForNativeView(dialog_host->GetHostView())-> | |
| 93 GetClientAreaBoundsInScreen().OffsetFromOrigin(); | |
| 94 } | |
| 95 | |
| 96 widget->SetBounds(gfx::Rect(position, size)); | |
| 97 } | |
| 98 | |
| 99 } // namespace | |
| 100 | |
| 101 void UpdateWebContentsModalDialogPosition( | |
| 102 views::Widget* widget, | |
| 103 web_modal::WebContentsModalDialogHost* dialog_host) { | |
| 104 gfx::Size size = widget->GetRootView()->GetPreferredSize(); | |
| 105 gfx::Size max_size = dialog_host->GetMaximumDialogSize(); | |
| 106 // Enlarge the max size by the top border, as the dialog will be shifted | |
| 107 // outside the area specified by the dialog host by this amount later. | |
| 108 views::Border* border = | |
| 109 widget->non_client_view()->frame_view()->border(); | |
| 110 // Border may be null during widget initialization. | |
| 111 if (border) | |
| 112 max_size.Enlarge(0, border->GetInsets().top()); | |
| 113 size.SetToMin(max_size); | |
| 114 UpdateModalDialogPosition(widget, dialog_host, size); | |
| 115 } | |
| 116 | |
| 117 void UpdateBrowserModalDialogPosition(views::Widget* widget, | |
| 118 web_modal::ModalDialogHost* dialog_host) { | |
| 119 UpdateModalDialogPosition(widget, dialog_host, | |
| 120 widget->GetRootView()->GetPreferredSize()); | |
| 121 } | |
| 122 | |
| 123 views::Widget* ShowWebModalDialogViews( | |
| 124 views::WidgetDelegate* dialog, | |
| 125 content::WebContents* initiator_web_contents) { | |
| 126 extensions::GuestViewBase* guest_view = | |
| 127 extensions::GuestViewBase::FromWebContents(initiator_web_contents); | |
| 128 // For embedded WebContents, use the embedder's WebContents for constrained | |
| 129 // window. | |
| 130 content::WebContents* web_contents = | |
| 131 guest_view && guest_view->embedder_web_contents() ? | |
| 132 guest_view->embedder_web_contents() : initiator_web_contents; | |
| 133 views::Widget* widget = CreateWebModalDialogViews(dialog, web_contents); | |
| 134 web_modal::PopupManager* popup_manager = | |
| 135 web_modal::PopupManager::FromWebContents(web_contents); | |
| 136 popup_manager->ShowModalDialog(widget->GetNativeWindow(), web_contents); | |
| 137 return widget; | |
| 138 } | |
| 139 | |
| 140 views::Widget* CreateWebModalDialogViews(views::WidgetDelegate* dialog, | |
| 141 content::WebContents* web_contents) { | |
| 142 DCHECK_EQ(ui::MODAL_TYPE_CHILD, dialog->GetModalType()); | |
| 143 web_modal::PopupManager* popup_manager = | |
| 144 web_modal::PopupManager::FromWebContents(web_contents); | |
| 145 const gfx::NativeWindow parent = popup_manager->GetHostView(); | |
| 146 return views::DialogDelegate::CreateDialogWidget(dialog, NULL, parent); | |
| 147 } | |
| 148 | |
| 149 // TODO(gbillock): Replace this with PopupManager calls. | |
| 150 views::Widget* CreateBrowserModalDialogViews(views::DialogDelegate* dialog, | |
| 151 gfx::NativeWindow parent) { | |
| 152 views::Widget* widget = | |
| 153 views::DialogDelegate::CreateDialogWidget(dialog, NULL, parent); | |
| 154 if (!dialog->UseNewStyleForThisDialog()) | |
| 155 return widget; | |
| 156 | |
| 157 // Get the browser dialog management and hosting components from |parent|. | |
| 158 Browser* browser = chrome::FindBrowserWithWindow(parent); | |
| 159 if (browser) { | |
| 160 ChromeWebModalDialogManagerDelegate* manager = browser; | |
| 161 ModalDialogHost* host = manager->GetWebContentsModalDialogHost(); | |
| 162 DCHECK_EQ(parent, host->GetHostView()); | |
| 163 ModalDialogHostObserver* dialog_host_observer = | |
| 164 new BrowserModalDialogHostObserverViews( | |
| 165 host, widget, kBrowserModalDialogHostObserverViewsKey); | |
| 166 dialog_host_observer->OnPositionRequiresUpdate(); | |
| 167 } | |
| 168 return widget; | |
| 169 } | |
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Chromium Code Reviews
Issue 658383003:
Componentize Constrained Window Views (Closed)
Base URL: https://chromium.googlesource.com/chromium/src@master