From df0ce23f3942892f8368d5f8a5aa2eac762c9b68 Mon Sep 17 00:00:00 2001
From: Jaakko Keränen <jaakko.keranen@iki.fi>
Date: Thu, 23 Jul 2020 16:03:08 +0300
Subject: Added a basic navigation bar with buttons and URL field

Not wired into anything yet.
---
 src/ui/documentwidget.c | 17 +++++++++--------
 src/ui/inputwidget.c    |  6 ++++++
 src/ui/inputwidget.h    |  1 +
 src/ui/scrollwidget.c   |  2 +-
 src/ui/window.c         | 24 +++++++++++++++++++++++-
 5 files changed, 40 insertions(+), 10 deletions(-)

diff --git a/src/ui/documentwidget.c b/src/ui/documentwidget.c
index 38c19fdd..9d95957a 100644
--- a/src/ui/documentwidget.c
+++ b/src/ui/documentwidget.c
@@ -353,12 +353,10 @@ static iBool processEvent_DocumentWidget_(iDocumentWidget *d, const SDL_Event *e
     }
     else if (ev->type == SDL_MOUSEMOTION) {
         const iGmRun *oldHoverLink = d->hoverLink;
-        d->hoverLink = NULL;
+        d->hoverLink          = NULL;
         const iRect docBounds = documentBounds_DocumentWidget_(d);
-        const iInt2 hoverPos =
-            addY_I2(sub_I2(localCoord_Widget(w, init_I2(ev->motion.x, ev->motion.y)),
-                           topLeft_Rect(docBounds)),
-                    d->scrollY);
+        const iInt2 hoverPos  = addY_I2(
+            sub_I2(init_I2(ev->motion.x, ev->motion.y), topLeft_Rect(docBounds)), d->scrollY);
         iConstForEach(PtrArray, i, &d->visibleLinks) {
             const iGmRun *run = i.ptr;
             if (contains_Rect(run->bounds, hoverPos)) {
@@ -425,15 +423,18 @@ static void draw_DocumentWidget_(const iDocumentWidget *d) {
         m->state = ready_DocumentState;
         updateVisible_DocumentWidget_(m);
     }
-    if (d->state != ready_DocumentState) return;
+    if (d->state != ready_DocumentState) return;    
     iDrawContext ctx = { .widget = d, .bounds = documentBounds_DocumentWidget_(d) };
-    init_Paint(&ctx.paint);
-    fillRect_Paint(&ctx.paint, bounds_Widget(w), gray25_ColorId);
+    const iRect bounds = bounds_Widget(w);
+    init_Paint(&ctx.paint);    
+    fillRect_Paint(&ctx.paint, bounds, gray25_ColorId);
+    setClip_Paint(&ctx.paint, bounds);
     render_GmDocument(
         d->doc,
         visibleRange_DocumentWidget_(d),
         drawRun_DrawContext_,
         &ctx);
+    clearClip_Paint(&ctx.paint);
     draw_Widget(w);
 }
 
diff --git a/src/ui/inputwidget.c b/src/ui/inputwidget.c
index 7a2b7d1c..1a692907 100644
--- a/src/ui/inputwidget.c
+++ b/src/ui/inputwidget.c
@@ -70,6 +70,12 @@ void setText_InputWidget(iInputWidget *d, const iString *text) {
     }
 }
 
+void setTextCStr_InputWidget(iInputWidget *d, const char *cstr) {
+    iString *str = newCStr_String(cstr);
+    setText_InputWidget(d, str);
+    delete_String(str);
+}
+
 void setCursor_InputWidget(iInputWidget *d, size_t pos) {
     d->cursor = iMin(pos, size_Array(&d->text));
 }
diff --git a/src/ui/inputwidget.h b/src/ui/inputwidget.h
index b606f974..6ee2760d 100644
--- a/src/ui/inputwidget.h
+++ b/src/ui/inputwidget.h
@@ -13,6 +13,7 @@ enum iInputMode {
 void    setMode_InputWidget     (iInputWidget *, enum iInputMode mode);
 void    setMaxLen_InputWidget   (iInputWidget *, size_t maxLen);
 void    setText_InputWidget     (iInputWidget *, const iString *text);
+void    setTextCStr_InputWidget (iInputWidget *, const char *cstr);
 void    setCursor_InputWidget   (iInputWidget *, size_t pos);
 void    begin_InputWidget       (iInputWidget *);
 void    end_InputWidget         (iInputWidget *, iBool accept);
diff --git a/src/ui/scrollwidget.c b/src/ui/scrollwidget.c
index 1be62bb8..1961677b 100644
--- a/src/ui/scrollwidget.c
+++ b/src/ui/scrollwidget.c
@@ -41,7 +41,7 @@ static iRect thumbRect_ScrollWidget_(const iScrollWidget *d) {
         const int tsize = thumbSize_ScrollWidget_(d);
         const int tpos =
             iClamp((float) d->thumb / (float) total, 0, 1) * (height_Rect(bounds) - tsize);
-        rect.pos.y  = tpos;
+        rect.pos.y  = bounds.pos.y + tpos;
         rect.size.y = tsize;
     }
     return rect;
diff --git a/src/ui/window.c b/src/ui/window.c
index 2bfecd8c..dbbd04b7 100644
--- a/src/ui/window.c
+++ b/src/ui/window.c
@@ -75,7 +75,29 @@ static void setupUserInterface_Window(iWindow *d) {
     setFlags_Widget(d->root, resizeChildren_WidgetFlag, iTrue);
     setCommandHandler_Widget(d->root, handleRootCommands_);
 
-    addChild_Widget(d->root, iClob(new_DocumentWidget()));
+    iWidget *div = makeVDiv_Widget();
+    setId_Widget(div, "navdiv");
+    addChild_Widget(d->root, iClob(div));
+
+    /* Navigation bar. */ {
+        iWidget *navBar = new_Widget();
+        setId_Widget(navBar, "navbar");
+        setFlags_Widget(navBar,
+                        arrangeHeight_WidgetFlag | resizeChildren_WidgetFlag |
+                            arrangeHorizontal_WidgetFlag,
+                        iTrue);
+        addChild_Widget(div, iClob(navBar));
+        setBackgroundColor_Widget(div, gray25_ColorId);
+
+        addChild_Widget(navBar, iClob(new_LabelWidget("Back", 0, 0, "navigate.back")));
+        addChild_Widget(navBar, iClob(new_LabelWidget("Fwd", 0, 0, "navigate.forward")));
+        addChild_Widget(navBar, iClob(new_LabelWidget("Home", 0, 0, "navigate.home")));
+        iInputWidget *url = new_InputWidget(0);
+        setTextCStr_InputWidget(url, "gemini://");
+        addChildFlags_Widget(navBar, iClob(url), expand_WidgetFlag);
+    }
+
+    addChildFlags_Widget(div, iClob(new_DocumentWidget()), expand_WidgetFlag);
 
 #if 0
     iWidget *mainDiv = makeHDiv_Widget();
-- 
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