Index: chrome/browser/views/find_bar_host_win.cc |
=================================================================== |
--- chrome/browser/views/find_bar_host_win.cc (revision 0) |
+++ chrome/browser/views/find_bar_host_win.cc (revision 0) |
@@ -0,0 +1,191 @@ |
+// Copyright (c) 2006-2009 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. |
+ |
+#include "chrome/browser/views/find_bar_host.h" |
+ |
+#include "chrome/browser/find_bar_controller.h" |
+#include "chrome/browser/renderer_host/render_view_host.h" |
+#include "chrome/browser/tab_contents/tab_contents.h" |
+#include "chrome/browser/tab_contents/tab_contents_view.h" |
+#include "chrome/browser/views/frame/browser_view.h" |
+#include "views/controls/scrollbar/native_scroll_bar.h" |
+#include "views/widget/widget_win.h" |
+ |
+class FindBarHostWidget : public views::WidgetWin { |
+ public: |
+ explicit FindBarHostWidget(FindBarHost* find_bar) : find_bar_(find_bar) { |
+ // Don't let WidgetWin manage our lifetime. We want our lifetime to |
+ // coincide with TabContents. |
+ set_delete_on_destroy(false); |
+ set_window_style(WS_CHILD | WS_CLIPCHILDREN); |
+ set_window_ex_style(WS_EX_TOPMOST); |
+ } |
+ |
+ void OnFinalMessage(HWND window) { |
+ find_bar_->OnFinalMessage(); |
+ } |
+ |
+ private: |
+ FindBarHost* find_bar_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(FindBarHostWidget); |
+}; |
+ |
+// TODO(brettw) this should not be so complicated. The view should really be in |
+// charge of these regions. CustomFrameWindow will do this for us. It will also |
+// let us set a path for the window region which will avoid some logic here. |
+void FindBarHost::UpdateWindowEdges(const gfx::Rect& new_pos) { |
+ // |w| is used to make it easier to create the part of the polygon that curves |
+ // the right side of the Find window. It essentially keeps track of the |
+ // x-pixel position of the right-most background image inside the view. |
+ // TODO(finnur): Let the view tell us how to draw the curves or convert |
+ // this to a CustomFrameWindow. |
+ int w = new_pos.width() - 6; // -6 positions us at the left edge of the |
+ // rightmost background image of the view. |
+ |
+ // This polygon array represents the outline of the background image for the |
+ // dialog. Basically, it encompasses only the visible pixels of the |
+ // concatenated find_dlg_LMR_bg images (where LMR = [left | middle | right]). |
+ static const POINT polygon[] = { |
+ {0, 0}, {0, 1}, {2, 3}, {2, 29}, {4, 31}, |
+ {4, 32}, {w+0, 32}, |
+ {w+0, 31}, {w+1, 31}, {w+3, 29}, {w+3, 3}, {w+6, 0} |
+ }; |
+ |
+ // Find the largest x and y value in the polygon. |
+ int max_x = 0, max_y = 0; |
+ for (int i = 0; i < arraysize(polygon); i++) { |
+ max_x = std::max(max_x, static_cast<int>(polygon[i].x)); |
+ max_y = std::max(max_y, static_cast<int>(polygon[i].y)); |
+ } |
+ |
+ // We then create the polygon and use SetWindowRgn to force the window to draw |
+ // only within that area. This region may get reduced in size below. |
+ HRGN region = CreatePolygonRgn(polygon, arraysize(polygon), ALTERNATE); |
+ |
+ // Are we animating? |
+ if (find_dialog_animation_offset_ > 0) { |
+ // The animation happens in two steps: First, we clip the window and then in |
+ // GetDialogPosition we offset the window position so that it still looks |
+ // attached to the toolbar as it grows. We clip the window by creating a |
+ // rectangle region (that gradually increases as the animation progresses) |
+ // and find the intersection between the two regions using CombineRgn. |
+ |
+ // |y| shrinks as the animation progresses from the height of the view down |
+ // to 0 (and reverses when closing). |
+ int y = find_dialog_animation_offset_; |
+ // |y| shrinking means the animation (visible) region gets larger. In other |
+ // words: the rectangle grows upward (when the dialog is opening). |
+ HRGN animation_region = CreateRectRgn(0, y, max_x, max_y); |
+ // |region| will contain the intersected parts after calling this function: |
+ CombineRgn(region, animation_region, region, RGN_AND); |
+ DeleteObject(animation_region); |
+ |
+ // Next, we need to increase the region a little bit to account for the |
+ // curved edges that the view will draw to make it look like grows out of |
+ // the toolbar. |
+ POINT left_curve[] = { |
+ {0, y+0}, {0, y+1}, {2, y+3}, {2, y+0}, {0, y+0} |
+ }; |
+ POINT right_curve[] = { |
+ {w+3, y+3}, {w+6, y+0}, {w+3, y+0}, {w+3, y+3} |
+ }; |
+ |
+ // Combine the region for the curve on the left with our main region. |
+ HRGN r = CreatePolygonRgn(left_curve, arraysize(left_curve), ALTERNATE); |
+ CombineRgn(region, r, region, RGN_OR); |
+ DeleteObject(r); |
+ |
+ // Combine the region for the curve on the right with our main region. |
+ r = CreatePolygonRgn(right_curve, arraysize(right_curve), ALTERNATE); |
+ CombineRgn(region, r, region, RGN_OR); |
+ DeleteObject(r); |
+ } |
+ |
+ // Now see if we need to truncate the region because parts of it obscures |
+ // the main window border. |
+ gfx::Rect dialog_bounds; |
+ GetDialogBounds(&dialog_bounds); |
+ |
+ // Calculate how much our current position overlaps our boundaries. If we |
+ // overlap, it means we have too little space to draw the whole dialog and |
+ // we allow overwriting the scrollbar before we start truncating our dialog. |
+ // |
+ // TODO(brettw) this constant is evil. This is the amount of room we've added |
+ // to the window size, when we set the region, it can change the size. |
+ static const int kAddedWidth = 7; |
+ int difference = (new_pos.right() - kAddedWidth) - |
+ dialog_bounds.width() - |
+ views::NativeScrollBar::GetVerticalScrollBarWidth() + |
+ 1; |
+ if (difference > 0) { |
+ POINT exclude[4] = {0}; |
+ exclude[0].x = max_x - difference; // Top left corner. |
+ exclude[0].y = 0; |
+ |
+ exclude[1].x = max_x; // Top right corner. |
+ exclude[1].y = 0; |
+ |
+ exclude[2].x = max_x; // Bottom right corner. |
+ exclude[2].y = max_y; |
+ |
+ exclude[3].x = max_x - difference; // Bottom left corner. |
+ exclude[3].y = max_y; |
+ |
+ // Subtract this region from the original region. |
+ HRGN exclude_rgn = CreatePolygonRgn(exclude, arraysize(exclude), ALTERNATE); |
+ int result = CombineRgn(region, region, exclude_rgn, RGN_DIFF); |
+ DeleteObject(exclude_rgn); |
+ } |
+ |
+ // The system now owns the region, so we do not delete it. |
+ ::SetWindowRgn(host_->GetNativeView(), region, TRUE); // TRUE = Redraw. |
+} |
+ |
+NativeWebKeyboardEvent FindBarHost::GetKeyboardEvent( |
+ const TabContents* contents, |
+ const views::Textfield::Keystroke& key_stroke) { |
+ HWND hwnd = contents->GetContentNativeView(); |
+ return NativeWebKeyboardEvent( |
+ hwnd, key_stroke.message(), key_stroke.key(), 0); |
+} |
+ |
+void FindBarHost::AudibleAlert() { |
+ MessageBeep(MB_OK); |
+} |
+ |
+views::Widget* FindBarHost::CreateHost() { |
+ return new FindBarHostWidget(this); |
+} |
+ |
+void FindBarHost::SetDialogPositionNative(const gfx::Rect& new_pos, |
+ bool no_redraw) { |
+ gfx::Rect window_rect; |
+ host_->GetBounds(&window_rect, true); |
+ DWORD swp_flags = SWP_NOOWNERZORDER; |
+ if (!window_rect.IsEmpty()) |
+ swp_flags |= SWP_NOSIZE; |
+ if (no_redraw) |
+ swp_flags |= SWP_NOREDRAW; |
+ if (!host_->IsVisible()) |
+ swp_flags |= SWP_SHOWWINDOW; |
+ |
+ ::SetWindowPos(host_->GetNativeView(), HWND_TOP, new_pos.x(), new_pos.y(), |
+ new_pos.width(), new_pos.height(), swp_flags); |
+} |
+ |
+void FindBarHost::GetDialogPositionNative(gfx::Rect* avoid_overlapping_rect) { |
+ RECT frame_rect = {0}, webcontents_rect = {0}; |
+ ::GetWindowRect( |
+ static_cast<views::WidgetWin*>(host_.get())->GetParent(), &frame_rect); |
+ ::GetWindowRect( |
+ find_bar_controller_->tab_contents()->view()->GetNativeView(), |
+ &webcontents_rect); |
+ avoid_overlapping_rect->Offset(0, webcontents_rect.top - frame_rect.top); |
+} |
+ |
+gfx::NativeView FindBarHost::GetNativeView(BrowserView* browser_view) { |
+ return browser_view->GetWidget()->GetNativeView(); |
+} |
+ |
Property changes on: chrome/browser/views/find_bar_host_win.cc |
___________________________________________________________________ |
Added: svn:executable |
+ * |
Added: svn:eol-style |
+ LF |