diff options
Diffstat (limited to 'chrome/browser/autocomplete/autocomplete_popup_view.h')
| -rw-r--r-- | chrome/browser/autocomplete/autocomplete_popup_view.h | 197 |
1 files changed, 22 insertions, 175 deletions
diff --git a/chrome/browser/autocomplete/autocomplete_popup_view.h b/chrome/browser/autocomplete/autocomplete_popup_view.h index 235e342..0db0af6 100644 --- a/chrome/browser/autocomplete/autocomplete_popup_view.h +++ b/chrome/browser/autocomplete/autocomplete_popup_view.h @@ -2,200 +2,47 @@ // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. +// This file defines the interface class AutocompletePopupView. Each toolkit +// will implement the popup view differently, so that code is inheriently +// platform specific. However, the AutocompletePopupModel needs to do some +// communication with the view. Since the model is shared between platforms, +// we need to define an interface that all view implementations will share. + #ifndef CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_POPUP_VIEW_H_ #define CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_POPUP_VIEW_H_ -#include <atlbase.h> -#include <atlapp.h> -#include <atlcrack.h> -#include <atlmisc.h> - -#include "base/win_util.h" -#include "chrome/browser/autocomplete/autocomplete.h" -#include "chrome/common/gfx/chrome_font.h" -#include "chrome/views/view.h" +#include "base/basictypes.h" class AutocompleteEditView; -class MirroringContext; -class SkBitmap; - class AutocompletePopupModel; +class ChromeFont; -// TODO(pkasting): http://b/1343512 The names and contents of the classes in -// this file are temporary. I am in hack-and-slash mode right now. - -#define AUTOCOMPLETEPOPUPVIEW_CLASSNAME L"Chrome_AutocompletePopupView" - -// This class implements a popup window used to display autocomplete results. -class AutocompletePopupView - : public CWindowImpl<AutocompletePopupView, CWindow, CControlWinTraits> { +class AutocompletePopupView { public: - DECLARE_WND_CLASS_EX(AUTOCOMPLETEPOPUPVIEW_CLASSNAME, - ((win_util::GetWinVersion() < win_util::WINVERSION_XP) ? - 0 : CS_DROPSHADOW), COLOR_WINDOW) - - BEGIN_MSG_MAP(AutocompletePopupView) - MSG_WM_ERASEBKGND(OnEraseBkgnd) - MSG_WM_LBUTTONDOWN(OnLButtonDown) - MSG_WM_MBUTTONDOWN(OnMButtonDown) - MSG_WM_LBUTTONUP(OnLButtonUp) - MSG_WM_MBUTTONUP(OnMButtonUp) - MSG_WM_MOUSEACTIVATE(OnMouseActivate) - MSG_WM_MOUSELEAVE(OnMouseLeave) - MSG_WM_MOUSEMOVE(OnMouseMove) - MSG_WM_PAINT(OnPaint) - END_MSG_MAP() + static AutocompletePopupView* CreatePopupView( + AutocompletePopupModel* model, + const ChromeFont& font, + AutocompleteEditView* edit_view); - AutocompletePopupView(AutocompletePopupModel* model, - const ChromeFont& font, - AutocompleteEditView* edit_view); + virtual ~AutocompletePopupView() { } // Returns true if the popup is currently open. - bool IsOpen() const { return m_hWnd != NULL; } + virtual bool IsOpen() const = 0; // Invalidates one line of the autocomplete popup. - void InvalidateLine(size_t line); + virtual void InvalidateLine(size_t line) = 0; // Redraws the popup window to match any changes in the result set; this may // mean opening or closing the window. - void UpdatePopupAppearance(); + virtual void UpdatePopupAppearance() = 0; // Called by the model when hover is enabled or disabled. - void OnHoverEnabledOrDisabled(bool disabled); - - private: - // Caches GDI objects and information for drawing. - struct DrawLineInfo { - enum LineStatus { - NORMAL = 0, - HOVERED, - SELECTED, - MAX_STATUS_ENTRIES - }; - - explicit DrawLineInfo(const ChromeFont& font); - ~DrawLineInfo(); - - static COLORREF AlphaBlend(COLORREF foreground, - COLORREF background, - BYTE alpha); - - static const wchar_t ellipsis_str[]; - - ChromeFont regular_font; // Fonts used for rendering AutocompleteMatches. - ChromeFont bold_font; - int font_height; // Height (in pixels) of a line of text w/o - // padding. - int line_height; // Height (in pixels) of a line of text w/padding. - int ave_char_width; // Width (in pixels) of an average character of - // the regular font. - int ellipsis_width; // Width (in pixels) of the ellipsis_str. - - // colors - COLORREF background_colors[MAX_STATUS_ENTRIES]; - COLORREF text_colors[MAX_STATUS_ENTRIES]; - COLORREF url_colors[MAX_STATUS_ENTRIES]; - - // brushes - HBRUSH brushes[MAX_STATUS_ENTRIES]; - - private: - static double LuminosityContrast(COLORREF color1, COLORREF color2); - static double Luminosity(COLORREF color); - }; - - // message handlers - LRESULT OnEraseBkgnd(HDC hdc) { - // We do all needed erasing ourselves in OnPaint, so the only thing that - // WM_ERASEBKGND will do is cause flicker. Disable it by just returning - // nonzero here ("erase completed") without doing anything. - return 1; - } - void OnLButtonDown(UINT keys, const CPoint& point); - void OnMButtonDown(UINT keys, const CPoint& point); - void OnLButtonUp(UINT keys, const CPoint& point); - void OnMButtonUp(UINT keys, const CPoint& point); - LRESULT OnMouseActivate(HWND window, UINT hit_test, UINT mouse_message); - void OnMouseLeave(); - void OnMouseMove(UINT keys, const CPoint& point); - void OnPaint(HDC hdc); - - // Called by On*ButtonUp() to do the actual work of handling a button - // release. Opens the item at the given coordinate, using the supplied - // disposition. - void OnButtonUp(const CPoint& point, WindowOpenDisposition disposition); - - // Gives the topmost y coordinate within |line|, which should be within the - // range of valid lines. - int LineTopPixel(size_t line) const; - - // Converts the given y-coordinate to a line. Due to drawing slop (window - // borders, etc.), |y| might be within the window but outside the range of - // pixels which correspond to lines; in this case the result will be clamped, - // i.e., the top and bottom lines will be treated as extending to the top and - // bottom edges of the window, respectively. - size_t PixelToLine(int y) const; - - // Draws a light border around the inside of the window with the given client - // rectangle and DC. - void DrawBorder(const RECT& rc, HDC dc); - - // Draws a single run of text with a particular style. Handles both LTR and - // RTL text as well as eliding. Returns the width, in pixels, of the string - // as it was actually displayed. - int DrawString(HDC dc, - int x, - int y, - int max_x, - const wchar_t* text, - int length, - int style, - const DrawLineInfo::LineStatus status, - const MirroringContext* context, - bool text_direction_is_rtl) const; - - // Draws a string from the autocomplete controller which can have specially - // marked "match" portions. - void DrawMatchFragments(HDC dc, - const std::wstring& text, - const ACMatchClassifications& classifications, - int x, - int y, - int max_x, - DrawLineInfo::LineStatus status) const; - - // Draws one line of the text in the box. - void DrawEntry(HDC dc, - const RECT& client_rect, - size_t line, - DrawLineInfo::LineStatus status, - bool all_descriptions_empty, - bool starred) const; - - // Draws the star at the specified location - void DrawStar(HDC dc, int x, int y) const; - - AutocompletePopupModel* model_; - - AutocompleteEditView* edit_view_; - - // Cached GDI information for drawing. - DrawLineInfo line_info_; - - // Bitmap for the star. This is owned by the ResourceBundle. - SkBitmap* star_; - - // A context used for mirroring regions. - scoped_ptr<MirroringContext> mirroring_context_; - - // When hovered_line_ is kNoMatch, this holds the screen coordinates of the - // mouse position when hover tracking was turned off. If the mouse moves to a - // point over the popup that has different coordinates, hover tracking will be - // re-enabled. When hovered_line_ is a valid line, the value here is - // out-of-date and should be ignored. - CPoint last_hover_coordinates_; + virtual void OnHoverEnabledOrDisabled(bool disabled) = 0; - DISALLOW_COPY_AND_ASSIGN(AutocompletePopupView); +#if defined(OS_WIN) + // Cause a WM_PAINT immediately (see msdn on UpdateWindow()). + virtual void PaintUpdatesNow() = 0; +#endif }; #endif // CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_POPUP_VIEW_H_ |