(librunview) URL hover-over/visited colouring
This commit is contained in:
Jaidyn Ann
parent
67ea3cd760
commit
b7c7ad6064
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@ -9,6 +9,8 @@
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#include <Locale.h>
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#include <MenuItem.h>
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#include <PopUpMenu.h>
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#include <ScrollBar.h>
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#include <TextView.h>
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#include <Window.h>
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@ -36,6 +38,12 @@ RunView::RunView(const char* name)
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urlFont.SetFace(B_UNDERSCORE_FACE);
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text_run urlRun = { 0, urlFont, ui_color(B_LINK_TEXT_COLOR) };
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fUrlRun = { 1, {urlRun} };
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text_run urlHoverRun = { 0, urlFont, ui_color(B_LINK_HOVER_COLOR) };
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fUrlHoverRun = { 1, {urlHoverRun} };
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text_run urlVisitedRun = { 0, urlFont, ui_color(B_LINK_VISITED_COLOR) };
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fUrlVisitedRun = { 1, {urlVisitedRun} };
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}
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@ -87,35 +95,27 @@ RunView::Insert(const char* text, const text_run_array* runs)
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{
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BString buf(text);
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int32 urlOffset = 0;
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int32 specStart = 0;
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int32 specEnd = 0;
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int32 lastEnd = 0;
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while (lastEnd < buf.CountChars() && urlOffset != B_ERROR)
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{
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urlOffset = buf.FindFirst("://", lastEnd);
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int32 length = buf.CountChars();
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int32 urlStart = buf.FindLast(" ", urlOffset) + 1;
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int32 urlEnd = buf.FindFirst(" ", urlOffset);
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if (urlStart == B_ERROR || urlOffset == B_ERROR)
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urlStart = lastEnd;
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if (urlEnd == B_ERROR || urlOffset == B_ERROR)
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urlEnd = buf.CountChars();
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BString url;
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BString nonurl;
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if (urlOffset == B_ERROR)
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buf.CopyCharsInto(nonurl, urlStart, urlEnd - urlStart);
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else {
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buf.CopyCharsInto(nonurl, lastEnd, urlStart - lastEnd);
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buf.CopyCharsInto(url, urlStart, urlEnd - urlStart);
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while (_FindUrlString(buf, &specStart, &specEnd, lastEnd) == true) {
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if (lastEnd < specStart) {
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BString normie;
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buf.CopyCharsInto(normie, lastEnd, specStart - lastEnd);
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BTextView::Insert(normie.String(), runs);
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}
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BString special;
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buf.CopyCharsInto(special, specStart, specEnd - specStart);
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BTextView::Insert(special.String(), &fUrlRun);
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// Actually insert the text
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if (nonurl.IsEmpty() == false)
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BTextView::Insert(nonurl.String(), runs);
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if (url.IsEmpty() == false)
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BTextView::Insert(url.String(), &fUrlRun);
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lastEnd = urlEnd;
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lastEnd = specEnd;
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}
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if (lastEnd < length) {
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BString remaining;
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buf.CopyCharsInto(remaining, lastEnd, length - lastEnd);
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BTextView::Insert(remaining.String(), runs);
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}
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}
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@ -131,12 +131,14 @@ RunView::MouseDown(BPoint where)
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else
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BTextView::MouseDown(where);
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BUrl url;
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if ((buttons & B_PRIMARY_MOUSE_BUTTON) && OverUrl(where, &url)) {
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if ((buttons & B_PRIMARY_MOUSE_BUTTON) && OverUrl(where)) {
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fMouseDown = true;
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if (url.IsValid() == true)
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BUrl url(WordAt(where));
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if (url.IsValid() == true) {
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fLastClicked = url;
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}
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}
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}
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@ -148,6 +150,8 @@ RunView::MouseUp(BPoint where)
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if (fMouseDown && fSelecting == false && fLastClicked.IsValid() == true) {
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fLastClicked.OpenWithPreferredApplication(true);
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fLastClicked = BUrl();
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// When cursor moves off URL, change color
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fCurrentUrlRuns = fUrlVisitedRun;
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}
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fMouseDown = false;
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fSelecting = false;
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@ -160,11 +164,29 @@ RunView::MouseMoved(BPoint where, uint32 code, const BMessage* drag)
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if (fSelecting == true)
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return;
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// Change the cursor and "hover-over" highlight for URLs
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if (code == B_INSIDE_VIEW)
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if (OverUrl(where) == true)
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if (OverUrl(where) == true) {
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int32 start = 0;
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int32 end = 0;
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FindWordAround(OffsetAt(where), &start, &end);
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if (fCurrentUrlEnd == 0) {
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fCurrentUrlRuns = *RunArray(start, end);
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fCurrentUrlStart = start;
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fCurrentUrlEnd = end;
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ReplaceRuns(start, end, &fUrlHoverRun);
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}
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SetViewCursor(fUrlCursor);
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else
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}
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else {
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if (fCurrentUrlEnd != 0) {
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ReplaceRuns(fCurrentUrlStart, fCurrentUrlEnd, &fCurrentUrlRuns);
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fCurrentUrlStart = 0;
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fCurrentUrlEnd = 0;
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}
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SetViewCursor(B_CURSOR_SYSTEM_DEFAULT);
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}
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}
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@ -202,6 +224,26 @@ RunView::Append(const char* text)
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}
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void
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RunView::Replace(int32 start, int32 end, const char* text, text_run_array* runs)
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{
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Delete(start, end);
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BTextView::Insert(start, text, strlen(text), runs);
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}
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void
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RunView::ReplaceRuns(int32 start, int32 end, text_run_array* runs)
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{
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char* buffer = new char[end - start];
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GetText(start, end - start, buffer);
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float current = ScrollBar(B_VERTICAL)->Value();
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Replace(start, end, buffer, runs);
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ScrollBar(B_VERTICAL)->SetValue(current);
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}
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BString
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RunView::WordAt(BPoint point)
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{
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@ -265,17 +307,23 @@ RunView::OverText(BPoint where)
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bool
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RunView::OverUrl(BPoint where, BUrl* url)
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RunView::OverUrl(BPoint where)
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{
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if (OverText(where) == false)
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return false;
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BString word = WordAt(where);
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if (BUrl(word.String()).IsValid() == true) {
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if (url != NULL)
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url->SetUrlString(word);
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int32 offset = OffsetAt(where);
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text_run_array* rArray = RunArray(offset, offset + 1);
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text_run run = rArray->runs[0];
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text_run urlRun = fUrlRun.runs[0];
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text_run urlHover = fUrlHoverRun.runs[0];
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text_run urlVisit = fUrlVisitedRun.runs[0];
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if ((run.font == urlRun.font || run.font == urlHover.font
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|| run.font == urlVisit.font)
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&& (run.color == urlRun.color || run.color == urlHover.color
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|| run.color == urlVisit.color))
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return true;
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}
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return false;
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}
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@ -323,3 +371,21 @@ RunView::_RightClickPopUp(BPoint where)
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menu->SetTargetForItems(this);
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return menu;
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}
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bool
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RunView::_FindUrlString(BString text, int32* start, int32* end, int32 offset)
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{
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int32 urlOffset = text.FindFirst("://", offset);
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int32 urlStart = text.FindLast(" ", urlOffset) + 1;
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int32 urlEnd = text.FindFirst(" ", urlOffset);
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if (urlStart == B_ERROR) urlStart = 0;
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if (urlEnd == B_ERROR) urlEnd = text.CountChars();
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if (urlOffset != B_ERROR) {
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*start = urlStart;
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*end = urlEnd;
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return true;
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}
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return false;
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}
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@ -30,24 +30,42 @@ public:
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uint16 fontFace = B_REGULAR_FACE);
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void Append(const char* text);
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void Replace(int32 start, int32 end, const char* text,
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text_run_array* runs);
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void ReplaceRuns(int32 start, int32 end, text_run_array* runs);
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BString WordAt(BPoint point);
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void FindWordAround(int32 offset, int32* start, int32* end,
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BString* _word = NULL);
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const char* GetLine(int32 line);
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bool OverText(BPoint where);
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bool OverUrl(BPoint where, BUrl* url = NULL);
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bool OverUrl(BPoint where);
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void ScrollToBottom();
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private:
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BPopUpMenu* _RightClickPopUp(BPoint where);
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bool fLastStyled;
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bool _FindUrlString(BString text, int32* start, int32* end,
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int32 offset);
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// For safe-keeping
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text_run_array fDefaultRun;
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text_run_array fUrlRun;
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text_run_array fUrlHoverRun;
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text_run_array fUrlVisitedRun;
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BCursor* fUrlCursor;
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// Whether or not the run was changed from default
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bool fLastStyled;
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// Used for the "hover over" URL highlighting
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text_run_array fCurrentUrlRuns;
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int32 fCurrentUrlStart;
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int32 fCurrentUrlEnd;
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// Information between MouseDown and MouseUp
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BUrl fLastClicked;
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bool fMouseDown;
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bool fSelecting;
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