Bug 469830 - Windows drawing code for test plugin. r=ted,joshmoz

modules/plugin/test/reftest/reftest.list

@@ -1,3 +1,3 @@
 # basic sanity checking
-random-if(!haveTestPlugin||MOZ_WIDGET_TOOLKIT!="cocoa") != plugin-sanity.html about:blank
-fails-if(!haveTestPlugin||MOZ_WIDGET_TOOLKIT!="cocoa") == plugin-sanity.html div-sanity.html
+random-if(!haveTestPlugin||MOZ_WIDGET_TOOLKIT!="cocoa"||MOZ_WIDGET_TOOLKIT!="windows") != plugin-sanity.html about:blank
+fails-if(!haveTestPlugin||MOZ_WIDGET_TOOLKIT!="cocoa"||MOZ_WIDGET_TOOLKIT!="windows") == plugin-sanity.html div-sanity.html

modules/plugin/test/testplugin/nptest_platform.h

@@ -38,7 +38,6 @@
 
 NPError pluginInstanceInit(InstanceData* instanceData);
 int16_t pluginHandleEvent(InstanceData* instanceData, void* event);
-// draws a gray box with a black border containing the browser UA string
 void    pluginDraw(InstanceData* instanceData);
 
 #endif // nptest_platform_h_

modules/plugin/test/testplugin/nptest_windows.cpp

@@ -28,11 +28,19 @@
  * 
  * Contributor(s):
  *   Josh Aas <josh@mozilla.com>
+ *   Jim Mathies <jmathies@mozilla.com>
  * 
  * ***** END LICENSE BLOCK ***** */
 
 #include "nptest_platform.h"
 
+#include <windows.h>
+#include <unknwn.h>
+#include <gdiplus.h>
+using namespace Gdiplus;
+
+#pragma comment(lib, "gdiplus.lib")
+
 NPError
 pluginInstanceInit(InstanceData* instanceData)
 {
@@ -42,10 +50,116 @@ pluginInstanceInit(InstanceData* instanceData)
 int16_t
 pluginHandleEvent(InstanceData* instanceData, void* event)
 {
+  NPEvent * pe = (NPEvent*) event;
+
+  if (pe == NULL || instanceData == NULL ||
+      instanceData->window.type != NPWindowTypeDrawable)
+    return 0;   
+
+  switch((UINT)pe->event) {
+    case WM_PAINT:   
+      pluginDraw(instanceData);   
+      return 1;   
+  }
+  
   return 0;
 }
 
+static Color
+GetColorsFromRGBA(PRUint32 rgba)
+{
+  BYTE r, g, b, a;
+  b = (rgba & 0xFF);
+  g = ((rgba & 0xFF00) >> 8);
+  r = ((rgba & 0xFF0000) >> 16);
+  a = ((rgba & 0xFF000000) >> 24);
+  return Color(a, r, g, b);
+}
+
 void
 pluginDraw(InstanceData* instanceData)
 {
+  NPP npp = instanceData->npp;
+  if (!npp)
+    return;
+
+  const char* uaString = NPN_UserAgent(npp);
+  if (!uaString)
+    return;
+
+  HDC hdc = (HDC)instanceData->window.window;
+
+  if (hdc == NULL)
+    return;
+
+  // Push the browser's hdc on the resource stack. This test plugin is windowless,
+  // so we share the drawing surface with the rest of the browser.
+  int savedDCID = SaveDC(hdc);
+
+  // Reset the clipping region
+  SelectClipRgn(hdc, NULL);
+
+  // Initialize GDI+.
+  GdiplusStartupInput gdiplusStartupInput;
+  ULONG_PTR gdiplusToken;
+  GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);
+
+  // Calculate the rectangle coordinates from the instanceData information
+  Rect rect(instanceData->window.x, instanceData->window.y, 
+    instanceData->window.width, instanceData->window.height);
+
+  // Create a layout rect for the text
+  RectF boundRect((float)instanceData->window.x, (float)instanceData->window.y, 
+    (float)instanceData->window.width, (float)instanceData->window.height);
+  boundRect.Inflate(-10.0, -10.0);
+
+  switch(instanceData->scriptableObject->drawMode) {
+    case DM_DEFAULT:
+    {
+      Graphics graphics(hdc);
+
+      // Fill in the background and border
+      Pen blackPen(Color(255, 0, 0, 0), 5);
+      SolidBrush grayBrush(Color(255, 192, 192, 192));
+
+      graphics.FillRectangle(&grayBrush, rect);
+      graphics.DrawRectangle(&blackPen, rect);
+
+      // Load a nice font
+      FontFamily fontFamily(L"Helvetica");
+      Font font(&fontFamily, 20, FontStyleBold, UnitPoint);
+      StringFormat stringFormat;
+      SolidBrush solidBrush(Color(255, 0, 0, 0));
+
+      // Center the text string
+      stringFormat.SetAlignment(StringAlignmentCenter);
+      stringFormat.SetLineAlignment(StringAlignmentCenter);
+
+      // Request anti-aliased text
+      graphics.SetTextRenderingHint(TextRenderingHintAntiAlias);
+
+      WCHAR wBuf[1024];
+      memset(&wBuf, 0, sizeof(wBuf));
+      MultiByteToWideChar(CP_ACP, 0, uaString, -1, wBuf, 1024);
+
+      // Draw the string
+      graphics.DrawString(wBuf, -1, &font, boundRect, &stringFormat, &solidBrush);
+    }
+    break;
+
+    case DM_SOLID_COLOR:
+    {
+      // Fill the plugin window with a solid color specified by the params
+      Graphics graphics(hdc);
+      SolidBrush brush(GetColorsFromRGBA(instanceData->scriptableObject->drawColor));
+      graphics.FillRectangle(&brush, rect.X, rect.Y, rect.Width, rect.Height);
+    }
+    break;
+  }
+
+  // Shutdown GDI+
+  GdiplusShutdown(gdiplusToken);
+
+  // Pop our hdc changes off the resource stack
+  RestoreDC(hdc, savedDCID);
 }