Wired everything and improved the TextControlCompleter behavior a bit with

regards to eating the B_RETURN key before we can dispatch in BrowserWindow. So
autocompletion for URLs basically works. What's missing is:

* Much better grouping of matches.
* Fix the delay when the BrowsingHistory is first accessed (lazy loads itself
  from disk just then, ought to do it in the application thread after startup,
  which probably makes it unnoticable before the user starts typing a URL).

git-svn-id: http://svn.haiku-os.org/webpositive/webkit/trunk@268 94f232f2-1747-11df-bad5-a5bfde151594

src/apps/webpositive/BrowserWindow.cpp

@@ -37,6 +37,7 @@
 #include "BrowserApp.h"
 #include "BrowsingHistory.h"
 #include "IconButton.h"
+#include "TextControlCompleter.h"
 #include "WebPage.h"
 #include "WebTabView.h"
 #include "WebView.h"
@@ -93,6 +94,66 @@ layoutItemFor(BView* view)
 }
 
 
+class BrowsingHistoryChoiceModel : public BAutoCompleter::ChoiceModel {
+	virtual void FetchChoicesFor(const BString& pattern)
+	{
+		int32 count = CountChoices();
+		for (int32 i = 0; i < count; i++) {
+			delete reinterpret_cast<BAutoCompleter::Choice*>(
+				fChoices.ItemAtFast(i));
+		}
+		fChoices.MakeEmpty();
+
+		// Search through BrowsingHistory for any matches.
+		BrowsingHistory* history = BrowsingHistory::defaultInstance();
+		if (!history->Lock())
+			return;
+
+		count = history->countItems();
+		for (int32 i = 0; i < count; i++) {
+			BrowsingHistoryItem item = history->historyItemAt(i);
+			const BString& choiceText = item.url();
+			int32 matchPos = choiceText.IFindFirst(pattern);
+			if (matchPos < 0)
+				continue;
+			fChoices.AddItem(new BAutoCompleter::Choice(choiceText,
+				choiceText, matchPos, pattern.Length()));
+		}
+
+		history->Unlock();
+	}
+
+	virtual int32 CountChoices() const
+	{
+		return fChoices.CountItems();
+	}
+
+	virtual const BAutoCompleter::Choice* ChoiceAt(int32 index) const
+	{
+		return reinterpret_cast<BAutoCompleter::Choice*>(
+			fChoices.ItemAt(index));
+	}
+
+private:
+	BList fChoices;
+};
+
+
+class BrowsingHistoryPatternSelector : public BAutoCompleter::PatternSelector {
+	virtual void SelectPatternBounds(const BString& text, int32 caretPos,
+		int32* start, int32* length)
+	{
+		if (!start || !length)
+			return;
+		*start = 0;
+		*length = text.Length();
+	}
+};
+
+
+// #pragma mark - BrowserWindow
+
+
 BrowserWindow::BrowserWindow(BRect frame, const BMessenger& downloadListener,
 		ToolbarPolicy toolbarPolicy)
 	: BWebWindow(frame, kApplicationName,
@@ -228,6 +289,10 @@ BrowserWindow::BrowserWindow(BRect frame, const BMessenger& downloadListener,
 
 		fURLTextControl->MakeFocus(true);
 
+		fURLAutoCompleter = new TextControlCompleter(fURLTextControl,
+			new BrowsingHistoryChoiceModel(),
+			new BrowsingHistoryPatternSelector());
+
 		fFindGroup = layoutItemFor(findGroup);
 		fTabGroup = layoutItemFor(fTabManager->TabGroup());
 	} else {
@@ -236,6 +301,7 @@ BrowserWindow::BrowserWindow(BRect frame, const BMessenger& downloadListener,
 		fStopButton = 0;
 		fGoButton = 0;
 		fURLTextControl = 0;
+		fURLAutoCompleter = 0;
 		fStatusText = 0;
 		fLoadingProgressBar = 0;
 
@@ -275,6 +341,8 @@ BrowserWindow::BrowserWindow(BRect frame, const BMessenger& downloadListener,
 
 BrowserWindow::~BrowserWindow()
 {
+	delete fURLAutoCompleter;
+	delete fTabManager;
 }
 
 

src/apps/webpositive/BrowserWindow.h

@@ -43,6 +43,7 @@ class BStringView;
 class BTextControl;
 class IconButton;
 class TabManager;
+class TextControlCompleter;
 class BWebView;
 
 enum ToolbarPolicy {
@@ -125,6 +126,7 @@ private:
 			IconButton*			fStopButton;
 			BButton*			fGoButton;
 			BTextControl*		fURLTextControl;
+			TextControlCompleter* fURLAutoCompleter;
 			BStringView*		fStatusText;
 			BStatusBar*			fLoadingProgressBar;
 			BLayoutItem*		fFindGroup;

src/apps/webpositive/autocompletion/AutoCompleter.cpp

@@ -148,6 +148,16 @@ BAutoCompleter::SelectPrevious(bool wrap)
 }
 
 
+bool
+BAutoCompleter::IsChoiceSelected() const
+{
+	if (fCompletionStyle)
+		return fCompletionStyle->IsChoiceSelected();
+	else
+		return false;
+}
+
+
 void
 BAutoCompleter::ApplyChoice(bool hideChoices)
 {
@@ -210,3 +220,4 @@ BAutoCompleter::SetCompletionStyle(CompletionStyle* style)
 	delete fCompletionStyle;
 	fCompletionStyle = style;
 }
+

src/apps/webpositive/autocompletion/AutoCompleter.h

@@ -97,6 +97,7 @@ public:
 		virtual	bool			Select(int32 index) = 0;
 		virtual	bool			SelectNext(bool wrap = false) = 0;
 		virtual	bool			SelectPrevious(bool wrap = false) = 0;
+		virtual	bool			IsChoiceSelected() const = 0;
 
 		virtual	void			ApplyChoice(bool hideChoices = true) = 0;
 		virtual	void			CancelChoice() = 0;
@@ -135,6 +136,7 @@ protected:
 			bool				Select(int32 index);
 			bool				SelectNext(bool wrap = false);
 			bool				SelectPrevious(bool wrap = false);
+			bool				IsChoiceSelected() const;
 		
 			void				ApplyChoice(bool hideChoices = true);
 			void				CancelChoice();

src/apps/webpositive/autocompletion/AutoCompleterDefaultImpl.cpp

@@ -96,6 +96,13 @@ BDefaultCompletionStyle::SelectPrevious(bool wrap)
 }
 
 
+bool
+BDefaultCompletionStyle::IsChoiceSelected() const
+{
+	return fSelectedIndex >= 0;
+}
+
+
 void
 BDefaultCompletionStyle::ApplyChoice(bool hideChoices)
 {
@@ -112,8 +119,10 @@ BDefaultCompletionStyle::ApplyChoice(bool hideChoices)
 	fEditView->SetEditViewState(completedText, 
 		fPatternStartPos+choiceStr.Length());
 
-	if (hideChoices)
+	if (hideChoices) {
 		fChoiceView->HideChoices();
+		Select(-1);
+	}
 }
 
 

src/apps/webpositive/autocompletion/AutoCompleterDefaultImpl.h

@@ -35,6 +35,7 @@ public:
 	virtual	bool				Select(int32 index);
 	virtual	bool				SelectNext(bool wrap = false);
 	virtual	bool				SelectPrevious(bool wrap = false);
+	virtual	bool				IsChoiceSelected() const;
 
 	virtual	void				ApplyChoice(bool hideChoices = true);
 	virtual	void				CancelChoice();

src/apps/webpositive/autocompletion/TextControlCompleter.cpp

@@ -10,6 +10,7 @@
 
 #include <Looper.h>
 #include <TextControl.h>
+#include <stdio.h>
 
 #include "AutoCompleterDefaultImpl.h"
 
@@ -58,7 +59,7 @@ TextControlCompleter::TextControlWrapper::GetAdjustmentFrame()
 {
 	BRect frame = fTextControl->TextView()->Bounds();
 	frame = fTextControl->TextView()->ConvertToScreen(frame);
-	frame.InsetBy(-1, -3);
+	frame.InsetBy(0, -3);
 	return frame;
 }
 
@@ -68,14 +69,16 @@ TextControlCompleter::TextControlCompleter(BTextControl* textControl,
 	:
 	BAutoCompleter(new TextControlWrapper(textControl), model, 
 		new BDefaultChoiceView(), patternSelector),
-	BMessageFilter(B_KEY_DOWN)
+	BMessageFilter(B_KEY_DOWN),
+	fTextControl(textControl)
 {
-	textControl->TextView()->AddFilter(this);
+	fTextControl->TextView()->AddFilter(this);
 }
 
 
 TextControlCompleter::~TextControlCompleter()
 {
+	fTextControl->TextView()->RemoveFilter(this);
 }
 
 
@@ -99,9 +102,12 @@ TextControlCompleter::Filter(BMessage* message, BHandler** target)
 			CancelChoice();
 			return B_SKIP_MESSAGE;
 		case B_RETURN:
-			ApplyChoice();
+			if (IsChoiceSelected()) {
-			EditViewStateChanged();
+				ApplyChoice();
-			return B_SKIP_MESSAGE;
+				EditViewStateChanged();
+			} else
+				CancelChoice();
+			return B_DISPATCH_MESSAGE;
 		case B_TAB: {
 			// make sure that the choices-view is closed when tabbing out:
 			CancelChoice();

src/apps/webpositive/autocompletion/TextControlCompleter.h

@@ -36,6 +36,8 @@ private:
 	private:
 				BTextControl*	fTextControl;
 	};
+private:
+			BTextControl*		fTextControl;
 };
 
 #endif // TEXT_CONTROL_COMPLETER_H