Opening unrecognized schemes in default browser

This works if the OS supports the scheme as built-in or via some handler application.

IssueID #103
IssueID #84

3 files changed, 28 insertions, 14 deletions

diff --git a/src/ui/documentwidget.c b/src/ui/documentwidget.c
index 22fa29f8..3f3e453a 100644
--- a/src/ui/documentwidget.c
+++ b/src/ui/documentwidget.c
@@ -370,7 +370,7 @@ static void addVisible_DocumentWidget_(void *context, const iGmRun *run) {
     if (run->audioId) {
         pushBack_PtrArray(&d->visiblePlayers, run);
     }
-    if (run->linkId && linkFlags_GmDocument(d->doc, run->linkId) & supportedProtocol_GmLinkFlag) {
+    if (run->linkId) {
         pushBack_PtrArray(&d->visibleLinks, run);
     }
 }
@@ -2147,13 +2147,10 @@ static iBool processEvent_DocumentWidget_(iDocumentWidget *d, const SDL_Event *e
                 const iGmRun *run = i.ptr;
                 if (run->flags & decoration_GmRunFlag &&
                     visibleLinkOrdinal_DocumentWidget_(d, run->linkId) == ord) {
-                    const int kmods = keyMods_Sym(SDL_GetModState());
                     postCommandf_App("open newtab:%d url:%s",
-                                     ((kmods & KMOD_PRIMARY) && (kmods & KMOD_SHIFT)) ? 1
-                                     : (kmods & KMOD_PRIMARY)                         ? 2
-                                                                                      : 0,
+                                     openTabMode_Sym(SDL_GetModState()),
                                      cstr_String(absoluteUrl_String(
-                                     d->mod.url, linkUrl_GmDocument(d->doc, run->linkId))));
+                                         d->mod.url, linkUrl_GmDocument(d->doc, run->linkId))));
                     iChangeFlags(d->flags, showLinkNumbers_DocumentWidgetFlag, iFalse);
                     invalidateVisibleLinks_DocumentWidget_(d);
                     refresh_Widget(d);
@@ -2315,7 +2312,7 @@ static iBool processEvent_DocumentWidget_(iDocumentWidget *d, const SDL_Event *e
                             &(iMenuItem){ "Open Link in Default Browser",
                                           0,
                                           0,
-                                          format_CStr("!open url:%s", cstr_String(linkUrl)) });
+                                          format_CStr("!open default:1 url:%s", cstr_String(linkUrl)) });
                     }
                     if (willUseProxy_App(scheme)) {
                         pushBackN_Array(
@@ -2437,10 +2434,10 @@ static iBool processEvent_DocumentWidget_(iDocumentWidget *d, const SDL_Event *e
                 setFocus_Widget(NULL);
                 if (d->hoverLink) {
                     const iGmLinkId linkId = d->hoverLink->linkId;
+                    const int linkFlags = linkFlags_GmDocument(d->doc, linkId);
                     iAssert(linkId);
                     /* Media links are opened inline by default. */
-                    if (isMediaLink_GmDocument(d->doc, linkId)) {
-                        const int linkFlags = linkFlags_GmDocument(d->doc, linkId);
+                    if (isMediaLink_GmDocument(d->doc, linkId)) {                        
                         if (linkFlags & content_GmLinkFlag && linkFlags & permanent_GmLinkFlag) {
                             /* We have the content and it cannot be dismissed, so nothing
                                further to do. */
@@ -2490,15 +2487,26 @@ static iBool processEvent_DocumentWidget_(iDocumentWidget *d, const SDL_Event *e
                         }
                         refresh_Widget(w);
                     }
-                    else {
-                        const int kmods = keyMods_Sym(SDL_GetModState());
+                    else if (linkFlags & supportedProtocol_GmLinkFlag) {
                         postCommandf_App("open newtab:%d url:%s",
-                                         ((kmods & KMOD_PRIMARY) && (kmods & KMOD_SHIFT)) ? 1
-                                         : (kmods & KMOD_PRIMARY)                         ? 2
-                                                                                          : 0,
+                                         openTabMode_Sym(SDL_GetModState()),
                                          cstr_String(absoluteUrl_String(
                                              d->mod.url, linkUrl_GmDocument(d->doc, linkId))));
                     }
+                    else {
+                        const iString *url = absoluteUrl_String(
+                            d->mod.url, linkUrl_GmDocument(d->doc, linkId));
+                        makeQuestion_Widget(
+                            uiTextCaution_ColorEscape "OPEN LINK",
+                            format_CStr(
+                                "Open this link in the default browser?\n" uiTextAction_ColorEscape
+                                "%s",
+                                cstr_String(url)),
+                            (const char *[]){ "Cancel", uiTextCaution_ColorEscape "Open Link" },
+                            (const char *[]){
+                                "cancel", format_CStr("!open default:1 url:%s", cstr_String(url)) },
+                            2);
+                    }
                 }
                 if (d->selectMark.start) {
                     d->selectMark = iNullRange;
diff --git a/src/ui/util.c b/src/ui/util.c
index b6378055..855f0fb3 100644
--- a/src/ui/util.c
+++ b/src/ui/util.c
@@ -135,6 +135,11 @@ int keyMods_Sym(int kmods) {
     return kmods;
 }
 
+int openTabMode_Sym(int kmods) {
+    const int km = keyMods_Sym(kmods);
+    return ((km & KMOD_PRIMARY) && (km & KMOD_SHIFT)) ? 1 : (km & KMOD_PRIMARY) ? 2 : 0;
+}
+
 iRangei intersect_Rangei(iRangei a, iRangei b) {
     if (a.end < b.start || a.start > b.end) {
         return (iRangei){ 0, 0 };
diff --git a/src/ui/util.h b/src/ui/util.h
index c9f464ad..a280fedb 100644
--- a/src/ui/util.h
+++ b/src/ui/util.h
@@ -52,6 +52,7 @@ iBool       isMod_Sym           (int key);
 int         normalizedMod_Sym   (int key);
 int         keyMods_Sym         (int kmods); /* shift, alt, control, or gui */
 void        toString_Sym        (int key, int kmods, iString *str);
+int         openTabMode_Sym     (int kmods);
 
 iRangei     intersect_Rangei    (iRangei a, iRangei b);
 iRangei     union_Rangei        (iRangei a, iRangei b);