haiku/src/apps/mail/FindWindow.cpp

/*
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of the Software, and to permit persons to whom the Software is furnished to do
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and shall be included in all copies or substantial portions of the Software.

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*/

// ===========================================================================
//	FindWindow.cpp
// 	Copyright 1996 by Peter Barrett, All rights reserved.
// ===========================================================================

#include "FindWindow.h"
#include "MailApp.h"
#include "MailWindow.h"
#include "Messages.h"

#include <Application.h>
#include <Box.h>
#include <Button.h>
#include <Catalog.h>
#include <Locale.h>
#include <String.h>
#include <TextView.h>


#define B_TRANSLATION_CONTEXT "Mail"


enum {
	M_FIND_STRING_CHANGED = 'fsch'
};


#define FINDBUTTON 'find'

static BString sPreviousFind = "";

FindWindow* FindWindow::fFindWindow = NULL;
BRect FindWindow::fLastPosition(BRect(100, 300, 300, 374));

void FindWindow::DoFind(BWindow* window, const char* text)
{
	if (window == NULL) {
		long i = 0;
		while ((window = be_app->WindowAt(i++)) != NULL) {
			// Send the text to a waiting window
			if (window != fFindWindow)
				if (dynamic_cast<TMailWindow*>(window) != NULL)
					break;	// Found a window
		}
	}

	/* ask that window who is in the front */
	window = dynamic_cast<TMailWindow*>(window)->FrontmostWindow();
	if (window == NULL)
		return;

//	Found a window, send a find message

	if (!window->Lock())
		return;
	BView* focus = window->FindView("m_content");
	window->Unlock();

	if (focus)
	{
		BMessage msg(M_FIND);
		msg.AddString("findthis",text);
		window->PostMessage(&msg, focus);
	}
}


FindPanel::FindPanel(BRect rect)
	:
	BBox(rect, "FindPanel", B_FOLLOW_LEFT_RIGHT, B_WILL_DRAW)
{
	BRect r = Bounds().InsetByCopy(10, 10);

	fTextControl = new BTextControl(r, "BTextControl", NULL,
		sPreviousFind.String(), new BMessage(M_FIND_STRING_CHANGED),
		B_FOLLOW_LEFT_RIGHT | B_FOLLOW_TOP);

	fTextControl->SetModificationMessage(new BMessage(M_FIND_STRING_CHANGED));
	fTextControl->SetText(sPreviousFind.String());
	fTextControl->MakeFocus();
	AddChild(fTextControl);

	fFindButton = new BButton(BRect(0, 0, 90, 20),"FINDBUTTON",
		B_TRANSLATE("Find"),
		new BMessage(FINDBUTTON),B_FOLLOW_LEFT | B_FOLLOW_BOTTOM);
	fFindButton->ResizeToPreferred();
	AddChild(fFindButton);
	r = fFindButton->Bounds();

	fFindButton->MoveTo(Bounds().right - r.Width() - 8,
		Bounds().bottom - r.Height() - 8);
	fFindButton->SetEnabled(sPreviousFind.Length());
}


FindPanel::~FindPanel()
{
	sPreviousFind = fTextControl->Text();
}


void FindPanel::AttachedToWindow()
{
	BView::AttachedToWindow();
	SetViewColor(216, 216, 216);
	Window()->SetDefaultButton(fFindButton);
	fFindButton->SetTarget(this);

	fTextControl->SetTarget(this);
	fTextControl->ResizeToPreferred();
	fTextControl->ResizeTo(Bounds().Width() - 20,
		fTextControl->Frame().Height());

	fTextControl->MakeFocus(true);
	fTextControl->TextView()->SelectAll();
}


void FindPanel::MouseDown(BPoint point)
{
	Window()->Activate();
	BView::MouseDown(point);
}


void FindPanel::Draw(BRect)
{
//	TextBevel(*this, mBTextView->Frame());
}


void FindPanel::KeyDown(const char*, int32)
{
	int32 length = fTextControl->TextView()->TextLength();
	bool enabled = fFindButton->IsEnabled();

	if (length > 0 && !enabled)
		fFindButton->SetEnabled(true);
	else if (length == 0 && enabled)
		fFindButton->SetEnabled(false);
}


void FindPanel::MessageReceived(BMessage* msg)
{
	switch (msg->what) {
		case M_FIND_STRING_CHANGED: {
			if (strlen(fTextControl->Text()) == 0)
				fFindButton->SetEnabled(false);
			else
				fFindButton->SetEnabled(true);
			break;
		}
		case FINDBUTTON: {
			Find();
			Window()->PostMessage(B_QUIT_REQUESTED);
			break;
		}
		default:
			BView::MessageReceived(msg);
	}
}


void FindPanel::Find()
{
	fTextControl->TextView()->SelectAll();
	const char* text = fTextControl->Text();
	if (text == NULL || text[0] == 0) return;

	BWindow* window = NULL;
	long i = 0;
	while ((bool)(window = be_app->WindowAt(i++))) {
		// Send the text to a waiting window
		if (window != FindWindow::fFindWindow)
			break;	// Found a window
	}

	if (window)
		FindWindow::DoFind(window, text);
}


FindWindow::FindWindow()
	: BWindow(FindWindow::fLastPosition, B_TRANSLATE("Find"),
		B_FLOATING_WINDOW, B_NOT_RESIZABLE | B_NOT_ZOOMABLE
			| B_WILL_ACCEPT_FIRST_CLICK | B_CLOSE_ON_ESCAPE)
{
	fFindPanel = new FindPanel(Bounds());
	AddChild(fFindPanel);
	fFindWindow = this;
	Show();
}


FindWindow::~FindWindow()
{
	FindWindow::fLastPosition = Frame();
	fFindWindow = NULL;
}


void FindWindow::Find(BWindow* window)
{
	// eliminate unused parameter warning
	(void)window;

	if (fFindWindow == NULL) {
		fFindWindow = new FindWindow();
	} else
		fFindWindow->Activate();
}


void FindWindow::FindAgain(BWindow* window)
{
	if (fFindWindow) {
		fFindWindow->Lock();
		fFindWindow->fFindPanel->Find();
		fFindWindow->Unlock();
	} else if (sPreviousFind.Length() != 0)
		DoFind(window, sPreviousFind.String());
	else
		Find(window);
}


void FindWindow::SetFindString(const char* string)
{
	sPreviousFind = string;
}


const char* FindWindow::GetFindString()
{
	return sPreviousFind.String();
}